Finding the Fourth Proportional to 2,981.20, 4,471.86 and 1,133.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,981.20 : 4,471.86 = 1,133.18 : x
2. Step 2: Convert to fraction form
   2,981.20/4,471.86 = 1,133.18/x
3. Step 3: Cross multiply
   2,981.20x = 4,471.86 × 1,133.18
4. Step 4: Simplify right side
   2,981.20x = 5,067,422.31
5. Step 5: Solve for x
   x = 5,067,422.31/2,981.20
6. Step 6: Final answer
   x = 1,699.80