Finding the Fourth Proportional to 2,820.47, 3,888.52 and 2,314.47

Step by Step Solution

1. Step 1: Write the proportion equation
   2,820.47 : 3,888.52 = 2,314.47 : x
2. Step 2: Convert to fraction form
   2,820.47/3,888.52 = 2,314.47/x
3. Step 3: Cross multiply
   2,820.47x = 3,888.52 × 2,314.47
4. Step 4: Simplify right side
   2,820.47x = 8,999,862.88
5. Step 5: Solve for x
   x = 8,999,862.88/2,820.47
6. Step 6: Final answer
   x = 3,190.91