Finding the Fourth Proportional to 1,358.80, 1,875.24 and 834.64

Step by Step Solution

1. Step 1: Write the proportion equation
   1,358.80 : 1,875.24 = 834.64 : x
2. Step 2: Convert to fraction form
   1,358.80/1,875.24 = 834.64/x
3. Step 3: Cross multiply
   1,358.80x = 1,875.24 × 834.64
4. Step 4: Simplify right side
   1,358.80x = 1,565,150.31
5. Step 5: Solve for x
   x = 1,565,150.31/1,358.80
6. Step 6: Final answer
   x = 1,151.86