Finding the Fourth Proportional to 2,525.72, 3,789.84 and 1,538.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,525.72 : 3,789.84 = 1,538.72 : x
2. Step 2: Convert to fraction form
   2,525.72/3,789.84 = 1,538.72/x
3. Step 3: Cross multiply
   2,525.72x = 3,789.84 × 1,538.72
4. Step 4: Simplify right side
   2,525.72x = 5,831,502.60
5. Step 5: Solve for x
   x = 5,831,502.60/2,525.72
6. Step 6: Final answer
   x = 2,308.85