Finding the Fourth Proportional to 2,158.52, 3,237.17 and 1,118.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,158.52 : 3,237.17 = 1,118.48 : x
2. Step 2: Convert to fraction form
   2,158.52/3,237.17 = 1,118.48/x
3. Step 3: Cross multiply
   2,158.52x = 3,237.17 × 1,118.48
4. Step 4: Simplify right side
   2,158.52x = 3,620,688.12
5. Step 5: Solve for x
   x = 3,620,688.12/2,158.52
6. Step 6: Final answer
   x = 1,677.40