Finding the Fourth Proportional to 1,140,942.24, 1,574,380.80 and 657,411.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,140,942.24 : 1,574,380.80 = 657,411.12 : x
2. Step 2: Convert to fraction form
   1,140,942.24/1,574,380.80 = 657,411.12/x
3. Step 3: Cross multiply
   1,140,942.24x = 1,574,380.80 × 657,411.12
4. Step 4: Simplify right side
   1,140,942.24x = 1,035,015,445,034.50
5. Step 5: Solve for x
   x = 1,035,015,445,034.50/1,140,942.24
6. Step 6: Final answer
   x = 907,158.49