Finding the Fourth Proportional to 2,250,665.31, 3,105,917.88 and 1,218,172.93

Step by Step Solution

1. Step 1: Write the proportion equation
   2,250,665.31 : 3,105,917.88 = 1,218,172.93 : x
2. Step 2: Convert to fraction form
   2,250,665.31/3,105,917.88 = 1,218,172.93/x
3. Step 3: Cross multiply
   2,250,665.31x = 3,105,917.88 × 1,218,172.93
4. Step 4: Simplify right side
   2,250,665.31x = 3,783,545,076,454.19
5. Step 5: Solve for x
   x = 3,783,545,076,454.19/2,250,665.31
6. Step 6: Final answer
   x = 1,681,078.51