Finding the Fourth Proportional to 2,521.48, 3,781.98 and 790.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,521.48 : 3,781.98 = 790.12 : x
2. Step 2: Convert to fraction form
   2,521.48/3,781.98 = 790.12/x
3. Step 3: Cross multiply
   2,521.48x = 3,781.98 × 790.12
4. Step 4: Simplify right side
   2,521.48x = 2,988,218.04
5. Step 5: Solve for x
   x = 2,988,218.04/2,521.48
6. Step 6: Final answer
   x = 1,185.10