Finding the Fourth Proportional to 3,892.17, 5,368.70 and 2,379.02

Step by Step Solution

1. Step 1: Write the proportion equation
   3,892.17 : 5,368.70 = 2,379.02 : x
2. Step 2: Convert to fraction form
   3,892.17/5,368.70 = 2,379.02/x
3. Step 3: Cross multiply
   3,892.17x = 5,368.70 × 2,379.02
4. Step 4: Simplify right side
   3,892.17x = 12,772,264.04
5. Step 5: Solve for x
   x = 12,772,264.04/3,892.17
6. Step 6: Final answer
   x = 3,281.53