Finding the Fourth Proportional to 2,307.69, 3,457.49 and 1,612.91

Step by Step Solution

1. Step 1: Write the proportion equation
   2,307.69 : 3,457.49 = 1,612.91 : x
2. Step 2: Convert to fraction form
   2,307.69/3,457.49 = 1,612.91/x
3. Step 3: Cross multiply
   2,307.69x = 3,457.49 × 1,612.91
4. Step 4: Simplify right side
   2,307.69x = 5,576,620.78
5. Step 5: Solve for x
   x = 5,576,620.78/2,307.69
6. Step 6: Final answer
   x = 2,416.54