Finding the Fourth Proportional to 1,722.52, 2,584.92 and 748.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,722.52 : 2,584.92 = 748.72 : x
2. Step 2: Convert to fraction form
   1,722.52/2,584.92 = 748.72/x
3. Step 3: Cross multiply
   1,722.52x = 2,584.92 × 748.72
4. Step 4: Simplify right side
   1,722.52x = 1,935,381.30
5. Step 5: Solve for x
   x = 1,935,381.30/1,722.52
6. Step 6: Final answer
   x = 1,123.58