Finding the Fourth Proportional to 1,788.12, 2,467.56 and 1,002.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,788.12 : 2,467.56 = 1,002.15 : x
2. Step 2: Convert to fraction form
   1,788.12/2,467.56 = 1,002.15/x
3. Step 3: Cross multiply
   1,788.12x = 2,467.56 × 1,002.15
4. Step 4: Simplify right side
   1,788.12x = 2,472,865.25
5. Step 5: Solve for x
   x = 2,472,865.25/1,788.12
6. Step 6: Final answer
   x = 1,382.94