Finding the Fourth Proportional to 3,977.17, 5,488.74 and 2,298.88

Step by Step Solution

1. Step 1: Write the proportion equation
   3,977.17 : 5,488.74 = 2,298.88 : x
2. Step 2: Convert to fraction form
   3,977.17/5,488.74 = 2,298.88/x
3. Step 3: Cross multiply
   3,977.17x = 5,488.74 × 2,298.88
4. Step 4: Simplify right side
   3,977.17x = 12,617,940.89
5. Step 5: Solve for x
   x = 12,617,940.89/3,977.17
6. Step 6: Final answer
   x = 3,172.59