Finding the Fourth Proportional to 2,065.18, 3,097.30 and 748.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,065.18 : 3,097.30 = 748.72 : x
2. Step 2: Convert to fraction form
   2,065.18/3,097.30 = 748.72/x
3. Step 3: Cross multiply
   2,065.18x = 3,097.30 × 748.72
4. Step 4: Simplify right side
   2,065.18x = 2,319,010.46
5. Step 5: Solve for x
   x = 2,319,010.46/2,065.18
6. Step 6: Final answer
   x = 1,122.91