Finding the Fourth Proportional to 1,348.78, 1,861.27 and 759.20

Step by Step Solution

1. Step 1: Write the proportion equation
   1,348.78 : 1,861.27 = 759.20 : x
2. Step 2: Convert to fraction form
   1,348.78/1,861.27 = 759.20/x
3. Step 3: Cross multiply
   1,348.78x = 1,861.27 × 759.20
4. Step 4: Simplify right side
   1,348.78x = 1,413,069.15
5. Step 5: Solve for x
   x = 1,413,069.15/1,348.78
6. Step 6: Final answer
   x = 1,047.67