Finding the Fourth Proportional to 1,114,671.36, 1,538,046.72 and 662,073.60

Step by Step Solution

1. Step 1: Write the proportion equation
   1,114,671.36 : 1,538,046.72 = 662,073.60 : x
2. Step 2: Convert to fraction form
   1,114,671.36/1,538,046.72 = 662,073.60/x
3. Step 3: Cross multiply
   1,114,671.36x = 1,538,046.72 × 662,073.60
4. Step 4: Simplify right side
   1,114,671.36x = 1,018,300,128,878.59
5. Step 5: Solve for x
   x = 1,018,300,128,878.59/1,114,671.36
6. Step 6: Final answer
   x = 913,542.92