Finding the Fourth Proportional to 2,002.56, 2,763.20 and 1,118.37

Step by Step Solution

1. Step 1: Write the proportion equation
   2,002.56 : 2,763.20 = 1,118.37 : x
2. Step 2: Convert to fraction form
   2,002.56/2,763.20 = 1,118.37/x
3. Step 3: Cross multiply
   2,002.56x = 2,763.20 × 1,118.37
4. Step 4: Simplify right side
   2,002.56x = 3,090,266.17
5. Step 5: Solve for x
   x = 3,090,266.17/2,002.56
6. Step 6: Final answer
   x = 1,543.16