Finding the Fourth Proportional to 1,002.38, 1,502.06 and 887.54

Step by Step Solution

1. Step 1: Write the proportion equation
   1,002.38 : 1,502.06 = 887.54 : x
2. Step 2: Convert to fraction form
   1,002.38/1,502.06 = 887.54/x
3. Step 3: Cross multiply
   1,002.38x = 1,502.06 × 887.54
4. Step 4: Simplify right side
   1,002.38x = 1,333,126.38
5. Step 5: Solve for x
   x = 1,333,126.38/1,002.38
6. Step 6: Final answer
   x = 1,329.97