Finding the Fourth Proportional to 1,451.55, 2,003.15 and 788.41

Step by Step Solution

1. Step 1: Write the proportion equation
   1,451.55 : 2,003.15 = 788.41 : x
2. Step 2: Convert to fraction form
   1,451.55/2,003.15 = 788.41/x
3. Step 3: Cross multiply
   1,451.55x = 2,003.15 × 788.41
4. Step 4: Simplify right side
   1,451.55x = 1,579,307.97
5. Step 5: Solve for x
   x = 1,579,307.97/1,451.55
6. Step 6: Final answer
   x = 1,088.01