Finding the Fourth Proportional to 2,042.08, 2,818.52 and 1,158.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,042.08 : 2,818.52 = 1,158.40 : x
2. Step 2: Convert to fraction form
   2,042.08/2,818.52 = 1,158.40/x
3. Step 3: Cross multiply
   2,042.08x = 2,818.52 × 1,158.40
4. Step 4: Simplify right side
   2,042.08x = 3,264,973.57
5. Step 5: Solve for x
   x = 3,264,973.57/2,042.08
6. Step 6: Final answer
   x = 1,598.85