Finding the Fourth Proportional to 1,349.80, 1,862.61 and 760.43

Step by Step Solution

1. Step 1: Write the proportion equation
   1,349.80 : 1,862.61 = 760.43 : x
2. Step 2: Convert to fraction form
   1,349.80/1,862.61 = 760.43/x
3. Step 3: Cross multiply
   1,349.80x = 1,862.61 × 760.43
4. Step 4: Simplify right side
   1,349.80x = 1,416,384.52
5. Step 5: Solve for x
   x = 1,416,384.52/1,349.80
6. Step 6: Final answer
   x = 1,049.33