Finding the Fourth Proportional to 1,452.02, 2,003.78 and 788.87

Step by Step Solution

1. Step 1: Write the proportion equation
   1,452.02 : 2,003.78 = 788.87 : x
2. Step 2: Convert to fraction form
   1,452.02/2,003.78 = 788.87/x
3. Step 3: Cross multiply
   1,452.02x = 2,003.78 × 788.87
4. Step 4: Simplify right side
   1,452.02x = 1,580,713.20
5. Step 5: Solve for x
   x = 1,580,713.20/1,452.02
6. Step 6: Final answer
   x = 1,088.63