Finding the Fourth Proportional to 2,002.18, 2,763.12 and 1,118.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,002.18 : 2,763.12 = 1,118.32 : x
2. Step 2: Convert to fraction form
   2,002.18/2,763.12 = 1,118.32/x
3. Step 3: Cross multiply
   2,002.18x = 2,763.12 × 1,118.32
4. Step 4: Simplify right side
   2,002.18x = 3,090,052.36
5. Step 5: Solve for x
   x = 3,090,052.36/2,002.18
6. Step 6: Final answer
   x = 1,543.34