Finding the Fourth Proportional to 2,423.49, 3,345.62 and 1,678.02

Step by Step Solution

1. Step 1: Write the proportion equation
   2,423.49 : 3,345.62 = 1,678.02 : x
2. Step 2: Convert to fraction form
   2,423.49/3,345.62 = 1,678.02/x
3. Step 3: Cross multiply
   2,423.49x = 3,345.62 × 1,678.02
4. Step 4: Simplify right side
   2,423.49x = 5,614,008.88
5. Step 5: Solve for x
   x = 5,614,008.88/2,423.49
6. Step 6: Final answer
   x = 2,316.50