Finding the Fourth Proportional to 3,892.67, 5,838.13 and 1,118.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,892.67 : 5,838.13 = 1,118.72 : x
2. Step 2: Convert to fraction form
   3,892.67/5,838.13 = 1,118.72/x
3. Step 3: Cross multiply
   3,892.67x = 5,838.13 × 1,118.72
4. Step 4: Simplify right side
   3,892.67x = 6,531,244.59
5. Step 5: Solve for x
   x = 6,531,244.59/3,892.67
6. Step 6: Final answer
   x = 1,677.83