Finding the Fourth Proportional to 1,293.72, 1,773.30 and 1,275.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,293.72 : 1,773.30 = 1,275.50 : x
2. Step 2: Convert to fraction form
   1,293.72/1,773.30 = 1,275.50/x
3. Step 3: Cross multiply
   1,293.72x = 1,773.30 × 1,275.50
4. Step 4: Simplify right side
   1,293.72x = 2,261,828.91
5. Step 5: Solve for x
   x = 2,261,828.91/1,293.72
6. Step 6: Final answer
   x = 1,748.31