Finding the Fourth Proportional to 1,358.81, 1,875.15 and 761.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,358.81 : 1,875.15 = 761.32 : x
2. Step 2: Convert to fraction form
   1,358.81/1,875.15 = 761.32/x
3. Step 3: Cross multiply
   1,358.81x = 1,875.15 × 761.32
4. Step 4: Simplify right side
   1,358.81x = 1,427,589.20
5. Step 5: Solve for x
   x = 1,427,589.20/1,358.81
6. Step 6: Final answer
   x = 1,050.62