Finding the Fourth Proportional to 2,981.30, 4,471.56 and 790.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,981.30 : 4,471.56 = 790.16 : x
2. Step 2: Convert to fraction form
   2,981.30/4,471.56 = 790.16/x
3. Step 3: Cross multiply
   2,981.30x = 4,471.56 × 790.16
4. Step 4: Simplify right side
   2,981.30x = 3,533,247.85
5. Step 5: Solve for x
   x = 3,533,247.85/2,981.30
6. Step 6: Final answer
   x = 1,185.14