Finding the Fourth Proportional to 2,555.56, 3,525.84 and 1,507.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,555.56 : 3,525.84 = 1,507.42 : x
2. Step 2: Convert to fraction form
   2,555.56/3,525.84 = 1,507.42/x
3. Step 3: Cross multiply
   2,555.56x = 3,525.84 × 1,507.42
4. Step 4: Simplify right side
   2,555.56x = 5,314,921.73
5. Step 5: Solve for x
   x = 5,314,921.73/2,555.56
6. Step 6: Final answer
   x = 2,079.75