Finding the Fourth Proportional to 3,907.08, 5,393.61 and 2,492.28

Step by Step Solution

1. Step 1: Write the proportion equation
   3,907.08 : 5,393.61 = 2,492.28 : x
2. Step 2: Convert to fraction form
   3,907.08/5,393.61 = 2,492.28/x
3. Step 3: Cross multiply
   3,907.08x = 5,393.61 × 2,492.28
4. Step 4: Simplify right side
   3,907.08x = 13,442,386.33
5. Step 5: Solve for x
   x = 13,442,386.33/3,907.08
6. Step 6: Final answer
   x = 3,440.52