Finding the Fourth Proportional to 2,047.10, 3,070.86 and 748.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,047.10 : 3,070.86 = 748.28 : x
2. Step 2: Convert to fraction form
   2,047.10/3,070.86 = 748.28/x
3. Step 3: Cross multiply
   2,047.10x = 3,070.86 × 748.28
4. Step 4: Simplify right side
   2,047.10x = 2,297,863.12
5. Step 5: Solve for x
   x = 2,297,863.12/2,047.10
6. Step 6: Final answer
   x = 1,122.50