Finding the Fourth Proportional to 2,076.10, 3,113.34 and 776.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,076.10 : 3,113.34 = 776.86 : x
2. Step 2: Convert to fraction form
   2,076.10/3,113.34 = 776.86/x
3. Step 3: Cross multiply
   2,076.10x = 3,113.34 × 776.86
4. Step 4: Simplify right side
   2,076.10x = 2,418,629.31
5. Step 5: Solve for x
   x = 2,418,629.31/2,076.10
6. Step 6: Final answer
   x = 1,164.99