Finding the Fourth Proportional to 1,392,179,415.31, 2,089,189,120.98 and 655,460,007.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,392,179,415.31 : 2,089,189,120.98 = 655,460,007.31 : x
2. Step 2: Convert to fraction form
   1,392,179,415.31/2,089,189,120.98 = 655,460,007.31/x
3. Step 3: Cross multiply
   1,392,179,415.31x = 2,089,189,120.98 × 655,460,007.31
4. Step 4: Simplify right side
   1,392,179,415.31x = 1,369,379,916,499,077,120
5. Step 5: Solve for x
   x = 1,369,379,916,499,077,120/1,392,179,415.31
6. Step 6: Final answer
   x = 983,623,160.52