Finding the Fourth Proportional to 1,111,538.28, 1,533,902.69 and 628,093.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,111,538.28 : 1,533,902.69 = 628,093.10 : x
2. Step 2: Convert to fraction form
   1,111,538.28/1,533,902.69 = 628,093.10/x
3. Step 3: Cross multiply
   1,111,538.28x = 1,533,902.69 × 628,093.10
4. Step 4: Simplify right side
   1,111,538.28x = 963,433,684,850.46
5. Step 5: Solve for x
   x = 963,433,684,850.46/1,111,538.28
6. Step 6: Final answer
   x = 866,757.09