Finding the Fourth Proportional to 2,988.55, 4,460.22 and 2,910.79

Step by Step Solution

1. Step 1: Write the proportion equation
   2,988.55 : 4,460.22 = 2,910.79 : x
2. Step 2: Convert to fraction form
   2,988.55/4,460.22 = 2,910.79/x
3. Step 3: Cross multiply
   2,988.55x = 4,460.22 × 2,910.79
4. Step 4: Simplify right side
   2,988.55x = 12,982,763.77
5. Step 5: Solve for x
   x = 12,982,763.77/2,988.55
6. Step 6: Final answer
   x = 4,344.17