Finding the Fourth Proportional to 2,046.72, 3,070.68 and 748.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,046.72 : 3,070.68 = 748.32 : x
2. Step 2: Convert to fraction form
   2,046.72/3,070.68 = 748.32/x
3. Step 3: Cross multiply
   2,046.72x = 3,070.68 × 748.32
4. Step 4: Simplify right side
   2,046.72x = 2,297,851.26
5. Step 5: Solve for x
   x = 2,297,851.26/2,046.72
6. Step 6: Final answer
   x = 1,122.70