Finding the Fourth Proportional to 2,791.07, 3,851.52 and 1,531.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,791.07 : 3,851.52 = 1,531.88 : x
2. Step 2: Convert to fraction form
   2,791.07/3,851.52 = 1,531.88/x
3. Step 3: Cross multiply
   2,791.07x = 3,851.52 × 1,531.88
4. Step 4: Simplify right side
   2,791.07x = 5,900,047.20
5. Step 5: Solve for x
   x = 5,900,047.20/2,791.07
6. Step 6: Final answer
   x = 2,113.91