Finding the Fourth Proportional to 3,388.48, 5,077.49 and 2,892.31

Step by Step Solution

1. Step 1: Write the proportion equation
   3,388.48 : 5,077.49 = 2,892.31 : x
2. Step 2: Convert to fraction form
   3,388.48/5,077.49 = 2,892.31/x
3. Step 3: Cross multiply
   3,388.48x = 5,077.49 × 2,892.31
4. Step 4: Simplify right side
   3,388.48x = 14,685,647.95
5. Step 5: Solve for x
   x = 14,685,647.95/3,388.48
6. Step 6: Final answer
   x = 4,333.99