Finding the Fourth Proportional to 1,787.91, 2,467.33 and 1,002.11

Step by Step Solution

1. Step 1: Write the proportion equation
   1,787.91 : 2,467.33 = 1,002.11 : x
2. Step 2: Convert to fraction form
   1,787.91/2,467.33 = 1,002.11/x
3. Step 3: Cross multiply
   1,787.91x = 2,467.33 × 1,002.11
4. Step 4: Simplify right side
   1,787.91x = 2,472,521.22
5. Step 5: Solve for x
   x = 2,472,521.22/1,787.91
6. Step 6: Final answer
   x = 1,382.91