Finding the Fourth Proportional to 1,109,175.30, 1,663,757.55 and 434,780.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,109,175.30 : 1,663,757.55 = 434,780.10 : x
2. Step 2: Convert to fraction form
   1,109,175.30/1,663,757.55 = 434,780.10/x
3. Step 3: Cross multiply
   1,109,175.30x = 1,663,757.55 × 434,780.10
4. Step 4: Simplify right side
   1,109,175.30x = 723,368,673,964.76
5. Step 5: Solve for x
   x = 723,368,673,964.76/1,109,175.30
6. Step 6: Final answer
   x = 652,168.03