Finding the Fourth Proportional to 3,068.89, 4,603.56 and 877.79

Step by Step Solution

1. Step 1: Write the proportion equation
   3,068.89 : 4,603.56 = 877.79 : x
2. Step 2: Convert to fraction form
   3,068.89/4,603.56 = 877.79/x
3. Step 3: Cross multiply
   3,068.89x = 4,603.56 × 877.79
4. Step 4: Simplify right side
   3,068.89x = 4,040,935.91
5. Step 5: Solve for x
   x = 4,040,935.91/3,068.89
6. Step 6: Final answer
   x = 1,316.74