Finding the Fourth Proportional to 3,893.38, 5,374.88 and 2,402.10

Step by Step Solution

1. Step 1: Write the proportion equation
   3,893.38 : 5,374.88 = 2,402.10 : x
2. Step 2: Convert to fraction form
   3,893.38/5,374.88 = 2,402.10/x
3. Step 3: Cross multiply
   3,893.38x = 5,374.88 × 2,402.10
4. Step 4: Simplify right side
   3,893.38x = 12,910,999.25
5. Step 5: Solve for x
   x = 12,910,999.25/3,893.38
6. Step 6: Final answer
   x = 3,316.14