Finding the Fourth Proportional to 2,559.74, 3,841.25 and 916.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,559.74 : 3,841.25 = 916.25 : x
2. Step 2: Convert to fraction form
   2,559.74/3,841.25 = 916.25/x
3. Step 3: Cross multiply
   2,559.74x = 3,841.25 × 916.25
4. Step 4: Simplify right side
   2,559.74x = 3,519,521.53
5. Step 5: Solve for x
   x = 3,519,521.53/2,559.74
6. Step 6: Final answer
   x = 1,374.96