Finding the Fourth Proportional to 5,238.16, 7,857.69 and 1,342.56

Step by Step Solution

1. Step 1: Write the proportion equation
   5,238.16 : 7,857.69 = 1,342.56 : x
2. Step 2: Convert to fraction form
   5,238.16/7,857.69 = 1,342.56/x
3. Step 3: Cross multiply
   5,238.16x = 7,857.69 × 1,342.56
4. Step 4: Simplify right side
   5,238.16x = 10,549,420.29
5. Step 5: Solve for x
   x = 10,549,420.29/5,238.16
6. Step 6: Final answer
   x = 2,013.96