Finding the Fourth Proportional to 4,061.74, 6,087.71 and 1,978.63

Step by Step Solution

1. Step 1: Write the proportion equation
   4,061.74 : 6,087.71 = 1,978.63 : x
2. Step 2: Convert to fraction form
   4,061.74/6,087.71 = 1,978.63/x
3. Step 3: Cross multiply
   4,061.74x = 6,087.71 × 1,978.63
4. Step 4: Simplify right side
   4,061.74x = 12,045,285.31
5. Step 5: Solve for x
   x = 12,045,285.31/4,061.74
6. Step 6: Final answer
   x = 2,965.55