Finding the Fourth Proportional to 1,358.96, 1,875.30 and 761.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,358.96 : 1,875.30 = 761.48 : x
2. Step 2: Convert to fraction form
   1,358.96/1,875.30 = 761.48/x
3. Step 3: Cross multiply
   1,358.96x = 1,875.30 × 761.48
4. Step 4: Simplify right side
   1,358.96x = 1,428,003.44
5. Step 5: Solve for x
   x = 1,428,003.44/1,358.96
6. Step 6: Final answer
   x = 1,050.81