Finding the Fourth Proportional to 1,348.72, 1,861.20 and 759.24

Step by Step Solution

1. Step 1: Write the proportion equation
   1,348.72 : 1,861.20 = 759.24 : x
2. Step 2: Convert to fraction form
   1,348.72/1,861.20 = 759.24/x
3. Step 3: Cross multiply
   1,348.72x = 1,861.20 × 759.24
4. Step 4: Simplify right side
   1,348.72x = 1,413,097.49
5. Step 5: Solve for x
   x = 1,413,097.49/1,348.72
6. Step 6: Final answer
   x = 1,047.73