Finding the Fourth Proportional to 2,499.34, 3,450.54 and 1,661.17

Step by Step Solution

1. Step 1: Write the proportion equation
   2,499.34 : 3,450.54 = 1,661.17 : x
2. Step 2: Convert to fraction form
   2,499.34/3,450.54 = 1,661.17/x
3. Step 3: Cross multiply
   2,499.34x = 3,450.54 × 1,661.17
4. Step 4: Simplify right side
   2,499.34x = 5,731,933.53
5. Step 5: Solve for x
   x = 5,731,933.53/2,499.34
6. Step 6: Final answer
   x = 2,293.38