Finding the Fourth Proportional to 2,078.84, 2,868.80 and 1,147.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,078.84 : 2,868.80 = 1,147.34 : x
2. Step 2: Convert to fraction form
   2,078.84/2,868.80 = 1,147.34/x
3. Step 3: Cross multiply
   2,078.84x = 2,868.80 × 1,147.34
4. Step 4: Simplify right side
   2,078.84x = 3,291,468.91
5. Step 5: Solve for x
   x = 3,291,468.91/2,078.84
6. Step 6: Final answer
   x = 1,583.32