Finding the Fourth Proportional to 1,317.62, 1,818.52 and 1,002.37

Step by Step Solution

1. Step 1: Write the proportion equation
   1,317.62 : 1,818.52 = 1,002.37 : x
2. Step 2: Convert to fraction form
   1,317.62/1,818.52 = 1,002.37/x
3. Step 3: Cross multiply
   1,317.62x = 1,818.52 × 1,002.37
4. Step 4: Simplify right side
   1,317.62x = 1,822,829.89
5. Step 5: Solve for x
   x = 1,822,829.89/1,317.62
6. Step 6: Final answer
   x = 1,383.43