Finding the Fourth Proportional to 2,359.18, 3,536.79 and 1,042.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,359.18 : 3,536.79 = 1,042.72 : x
2. Step 2: Convert to fraction form
   2,359.18/3,536.79 = 1,042.72/x
3. Step 3: Cross multiply
   2,359.18x = 3,536.79 × 1,042.72
4. Step 4: Simplify right side
   2,359.18x = 3,687,881.67
5. Step 5: Solve for x
   x = 3,687,881.67/2,359.18
6. Step 6: Final answer
   x = 1,563.20