Finding the Fourth Proportional to 2,759.58, 4,140.72 and 1,298.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,759.58 : 4,140.72 = 1,298.52 : x
2. Step 2: Convert to fraction form
   2,759.58/4,140.72 = 1,298.52/x
3. Step 3: Cross multiply
   2,759.58x = 4,140.72 × 1,298.52
4. Step 4: Simplify right side
   2,759.58x = 5,376,807.73
5. Step 5: Solve for x
   x = 5,376,807.73/2,759.58
6. Step 6: Final answer
   x = 1,948.42