Finding the Fourth Proportional to 2,071.16, 3,107.98 and 773.54

Step by Step Solution

1. Step 1: Write the proportion equation
   2,071.16 : 3,107.98 = 773.54 : x
2. Step 2: Convert to fraction form
   2,071.16/3,107.98 = 773.54/x
3. Step 3: Cross multiply
   2,071.16x = 3,107.98 × 773.54
4. Step 4: Simplify right side
   2,071.16x = 2,404,146.85
5. Step 5: Solve for x
   x = 2,404,146.85/2,071.16
6. Step 6: Final answer
   x = 1,160.77