Finding the Fourth Proportional to 2,519.55, 3,779.28 and 788.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,519.55 : 3,779.28 = 788.16 : x
2. Step 2: Convert to fraction form
   2,519.55/3,779.28 = 788.16/x
3. Step 3: Cross multiply
   2,519.55x = 3,779.28 × 788.16
4. Step 4: Simplify right side
   2,519.55x = 2,978,677.32
5. Step 5: Solve for x
   x = 2,978,677.32/2,519.55
6. Step 6: Final answer
   x = 1,182.23