Finding the Fourth Proportional to 2,231.07, 3,345.91 and 1,542.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,231.07 : 3,345.91 = 1,542.16 : x
2. Step 2: Convert to fraction form
   2,231.07/3,345.91 = 1,542.16/x
3. Step 3: Cross multiply
   2,231.07x = 3,345.91 × 1,542.16
4. Step 4: Simplify right side
   2,231.07x = 5,159,928.57
5. Step 5: Solve for x
   x = 5,159,928.57/2,231.07
6. Step 6: Final answer
   x = 2,312.76