Finding the Fourth Proportional to 5,077.89, 7,610.76 and 2,883.60

Step by Step Solution

1. Step 1: Write the proportion equation
   5,077.89 : 7,610.76 = 2,883.60 : x
2. Step 2: Convert to fraction form
   5,077.89/7,610.76 = 2,883.60/x
3. Step 3: Cross multiply
   5,077.89x = 7,610.76 × 2,883.60
4. Step 4: Simplify right side
   5,077.89x = 21,946,387.54
5. Step 5: Solve for x
   x = 21,946,387.54/5,077.89
6. Step 6: Final answer
   x = 4,321.95