Finding the Fourth Proportional to 2,735.80, 3,775.72 and 1,557.08

Step by Step Solution

1. Step 1: Write the proportion equation
   2,735.80 : 3,775.72 = 1,557.08 : x
2. Step 2: Convert to fraction form
   2,735.80/3,775.72 = 1,557.08/x
3. Step 3: Cross multiply
   2,735.80x = 3,775.72 × 1,557.08
4. Step 4: Simplify right side
   2,735.80x = 5,879,098.10
5. Step 5: Solve for x
   x = 5,879,098.10/2,735.80
6. Step 6: Final answer
   x = 2,148.95