Finding the Fourth Proportional to 2,499.40, 3,744.42 and 2,091.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,499.40 : 3,744.42 = 2,091.16 : x
2. Step 2: Convert to fraction form
   2,499.40/3,744.42 = 2,091.16/x
3. Step 3: Cross multiply
   2,499.40x = 3,744.42 × 2,091.16
4. Step 4: Simplify right side
   2,499.40x = 7,830,181.33
5. Step 5: Solve for x
   x = 7,830,181.33/2,499.40
6. Step 6: Final answer
   x = 3,132.82