Finding the Fourth Proportional to 2,307.69, 3,185.70 and 1,424.01

Step by Step Solution

1. Step 1: Write the proportion equation
   2,307.69 : 3,185.70 = 1,424.01 : x
2. Step 2: Convert to fraction form
   2,307.69/3,185.70 = 1,424.01/x
3. Step 3: Cross multiply
   2,307.69x = 3,185.70 × 1,424.01
4. Step 4: Simplify right side
   2,307.69x = 4,536,468.66
5. Step 5: Solve for x
   x = 4,536,468.66/2,307.69
6. Step 6: Final answer
   x = 1,965.81