Finding the Fourth Proportional to 1,350.80, 1,863.98 and 761.22

Step by Step Solution

1. Step 1: Write the proportion equation
   1,350.80 : 1,863.98 = 761.22 : x
2. Step 2: Convert to fraction form
   1,350.80/1,863.98 = 761.22/x
3. Step 3: Cross multiply
   1,350.80x = 1,863.98 × 761.22
4. Step 4: Simplify right side
   1,350.80x = 1,418,898.86
5. Step 5: Solve for x
   x = 1,418,898.86/1,350.80
6. Step 6: Final answer
   x = 1,050.41