Finding the Fourth Proportional to 2,788.98, 4,180.56 and 1,307.44

Step by Step Solution

1. Step 1: Write the proportion equation
   2,788.98 : 4,180.56 = 1,307.44 : x
2. Step 2: Convert to fraction form
   2,788.98/4,180.56 = 1,307.44/x
3. Step 3: Cross multiply
   2,788.98x = 4,180.56 × 1,307.44
4. Step 4: Simplify right side
   2,788.98x = 5,465,839.04
5. Step 5: Solve for x
   x = 5,465,839.04/2,788.98
6. Step 6: Final answer
   x = 1,959.80