Finding the Fourth Proportional to 2,047.57, 3,071.76 and 748.87

Step by Step Solution

1. Step 1: Write the proportion equation
   2,047.57 : 3,071.76 = 748.87 : x
2. Step 2: Convert to fraction form
   2,047.57/3,071.76 = 748.87/x
3. Step 3: Cross multiply
   2,047.57x = 3,071.76 × 748.87
4. Step 4: Simplify right side
   2,047.57x = 2,300,348.91
5. Step 5: Solve for x
   x = 2,300,348.91/2,047.57
6. Step 6: Final answer
   x = 1,123.45