Finding the Fourth Proportional to 2,981.47, 4,472.24 and 790.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,981.47 : 4,472.24 = 790.25 : x
2. Step 2: Convert to fraction form
   2,981.47/4,472.24 = 790.25/x
3. Step 3: Cross multiply
   2,981.47x = 4,472.24 × 790.25
4. Step 4: Simplify right side
   2,981.47x = 3,534,165.30
5. Step 5: Solve for x
   x = 3,534,165.30/2,981.47
6. Step 6: Final answer
   x = 1,185.38