Finding the Fourth Proportional to 1,451.57, 2,003.14 and 788.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,451.57 : 2,003.14 = 788.42 : x
2. Step 2: Convert to fraction form
   1,451.57/2,003.14 = 788.42/x
3. Step 3: Cross multiply
   1,451.57x = 2,003.14 × 788.42
4. Step 4: Simplify right side
   1,451.57x = 1,579,317.20
5. Step 5: Solve for x
   x = 1,579,317.20/1,451.57
6. Step 6: Final answer
   x = 1,088.01