Finding the Fourth Proportional to 3,977.47, 5,488.94 and 2,298.88

Step by Step Solution

1. Step 1: Write the proportion equation
   3,977.47 : 5,488.94 = 2,298.88 : x
2. Step 2: Convert to fraction form
   3,977.47/5,488.94 = 2,298.88/x
3. Step 3: Cross multiply
   3,977.47x = 5,488.94 × 2,298.88
4. Step 4: Simplify right side
   3,977.47x = 12,618,402.89
5. Step 5: Solve for x
   x = 12,618,402.89/3,977.47
6. Step 6: Final answer
   x = 3,172.47