Finding the Fourth Proportional to 2,078.90, 2,868.63 and 1,147.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,078.90 : 2,868.63 = 1,147.34 : x
2. Step 2: Convert to fraction form
   2,078.90/2,868.63 = 1,147.34/x
3. Step 3: Cross multiply
   2,078.90x = 2,868.63 × 1,147.34
4. Step 4: Simplify right side
   2,078.90x = 3,291,293.94
5. Step 5: Solve for x
   x = 3,291,293.94/2,078.90
6. Step 6: Final answer
   x = 1,583.19