Finding the Fourth Proportional to 1,788.32, 2,467.91 and 1,002.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,788.32 : 2,467.91 = 1,002.55 : x
2. Step 2: Convert to fraction form
   1,788.32/2,467.91 = 1,002.55/x
3. Step 3: Cross multiply
   1,788.32x = 2,467.91 × 1,002.55
4. Step 4: Simplify right side
   1,788.32x = 2,474,185.82
5. Step 5: Solve for x
   x = 2,474,185.82/1,788.32
6. Step 6: Final answer
   x = 1,383.53