Finding the Fourth Proportional to 1,109,900.10, 1,664,850.15 and 684,747.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,109,900.10 : 1,664,850.15 = 684,747.30 : x
2. Step 2: Convert to fraction form
   1,109,900.10/1,664,850.15 = 684,747.30/x
3. Step 3: Cross multiply
   1,109,900.10x = 1,664,850.15 × 684,747.30
4. Step 4: Simplify right side
   1,109,900.10x = 1,140,001,645,117.10
5. Step 5: Solve for x
   x = 1,140,001,645,117.10/1,109,900.10
6. Step 6: Final answer
   x = 1,027,120.95