Finding the Fourth Proportional to 2,079.42, 2,869.86 and 1,581.24

Step by Step Solution

1. Step 1: Write the proportion equation
   2,079.42 : 2,869.86 = 1,581.24 : x
2. Step 2: Convert to fraction form
   2,079.42/2,869.86 = 1,581.24/x
3. Step 3: Cross multiply
   2,079.42x = 2,869.86 × 1,581.24
4. Step 4: Simplify right side
   2,079.42x = 4,537,937.43
5. Step 5: Solve for x
   x = 4,537,937.43/2,079.42
6. Step 6: Final answer
   x = 2,182.31