Finding the Fourth Proportional to 3,663.18, 5,486.82 and 2,276.88

Step by Step Solution

1. Step 1: Write the proportion equation
   3,663.18 : 5,486.82 = 2,276.88 : x
2. Step 2: Convert to fraction form
   3,663.18/5,486.82 = 2,276.88/x
3. Step 3: Cross multiply
   3,663.18x = 5,486.82 × 2,276.88
4. Step 4: Simplify right side
   3,663.18x = 12,492,830.72
5. Step 5: Solve for x
   x = 12,492,830.72/3,663.18
6. Step 6: Final answer
   x = 3,410.38