Finding the Fourth Proportional to 1,144,062.32, 1,578,801.55 and 627,824.81

Step by Step Solution

1. Step 1: Write the proportion equation
   1,144,062.32 : 1,578,801.55 = 627,824.81 : x
2. Step 2: Convert to fraction form
   1,144,062.32/1,578,801.55 = 627,824.81/x
3. Step 3: Cross multiply
   1,144,062.32x = 1,578,801.55 × 627,824.81
4. Step 4: Simplify right side
   1,144,062.32x = 991,210,785,533.90
5. Step 5: Solve for x
   x = 991,210,785,533.90/1,144,062.32
6. Step 6: Final answer
   x = 866,395.80