Finding the Fourth Proportional to 1,550,678.31, 2,139,622.29 and 905,973.93

Step by Step Solution

1. Step 1: Write the proportion equation
   1,550,678.31 : 2,139,622.29 = 905,973.93 : x
2. Step 2: Convert to fraction form
   1,550,678.31/2,139,622.29 = 905,973.93/x
3. Step 3: Cross multiply
   1,550,678.31x = 2,139,622.29 × 905,973.93
4. Step 4: Simplify right side
   1,550,678.31x = 1,938,442,014,786.90
5. Step 5: Solve for x
   x = 1,938,442,014,786.90/1,550,678.31
6. Step 6: Final answer
   x = 1,250,060.70