Finding the Fourth Proportional to 2,538.57, 3,502.13 and 1,530.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,538.57 : 3,502.13 = 1,530.69 : x
2. Step 2: Convert to fraction form
   2,538.57/3,502.13 = 1,530.69/x
3. Step 3: Cross multiply
   2,538.57x = 3,502.13 × 1,530.69
4. Step 4: Simplify right side
   2,538.57x = 5,360,667.72
5. Step 5: Solve for x
   x = 5,360,667.72/2,538.57
6. Step 6: Final answer
   x = 2,111.69