Finding the Fourth Proportional to 1,785.24, 2,463.55 and 1,039.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,785.24 : 2,463.55 = 1,039.10 : x
2. Step 2: Convert to fraction form
   1,785.24/2,463.55 = 1,039.10/x
3. Step 3: Cross multiply
   1,785.24x = 2,463.55 × 1,039.10
4. Step 4: Simplify right side
   1,785.24x = 2,559,859.89
5. Step 5: Solve for x
   x = 2,559,859.89/1,785.24
6. Step 6: Final answer
   x = 1,433.90