Finding the Fourth Proportional to 1,451.98, 2,003.75 and 788.84

Step by Step Solution

1. Step 1: Write the proportion equation
   1,451.98 : 2,003.75 = 788.84 : x
2. Step 2: Convert to fraction form
   1,451.98/2,003.75 = 788.84/x
3. Step 3: Cross multiply
   1,451.98x = 2,003.75 × 788.84
4. Step 4: Simplify right side
   1,451.98x = 1,580,629.31
5. Step 5: Solve for x
   x = 1,580,629.31/1,451.98
6. Step 6: Final answer
   x = 1,088.60