Finding the Fourth Proportional to 1,785.82, 2,465.26 and 1,039.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,785.82 : 2,465.26 = 1,039.50 : x
2. Step 2: Convert to fraction form
   1,785.82/2,465.26 = 1,039.50/x
3. Step 3: Cross multiply
   1,785.82x = 2,465.26 × 1,039.50
4. Step 4: Simplify right side
   1,785.82x = 2,562,637.77
5. Step 5: Solve for x
   x = 2,562,637.77/1,785.82
6. Step 6: Final answer
   x = 1,434.99