Finding the Fourth Proportional to 2,981.12, 4,471.72 and 790.06

Step by Step Solution

1. Step 1: Write the proportion equation
   2,981.12 : 4,471.72 = 790.06 : x
2. Step 2: Convert to fraction form
   2,981.12/4,471.72 = 790.06/x
3. Step 3: Cross multiply
   2,981.12x = 4,471.72 × 790.06
4. Step 4: Simplify right side
   2,981.12x = 3,532,927.10
5. Step 5: Solve for x
   x = 3,532,927.10/2,981.12
6. Step 6: Final answer
   x = 1,185.10