Finding the Fourth Proportional to 3,665.46, 5,498.11 and 892.15

Step by Step Solution

1. Step 1: Write the proportion equation
   3,665.46 : 5,498.11 = 892.15 : x
2. Step 2: Convert to fraction form
   3,665.46/5,498.11 = 892.15/x
3. Step 3: Cross multiply
   3,665.46x = 5,498.11 × 892.15
4. Step 4: Simplify right side
   3,665.46x = 4,905,111.35
5. Step 5: Solve for x
   x = 4,905,111.35/3,665.46
6. Step 6: Final answer
   x = 1,338.20