Finding the Fourth Proportional to 2,664.42, 3,996.98 and 1,430.14

Step by Step Solution

1. Step 1: Write the proportion equation
   2,664.42 : 3,996.98 = 1,430.14 : x
2. Step 2: Convert to fraction form
   2,664.42/3,996.98 = 1,430.14/x
3. Step 3: Cross multiply
   2,664.42x = 3,996.98 × 1,430.14
4. Step 4: Simplify right side
   2,664.42x = 5,716,233.83
5. Step 5: Solve for x
   x = 5,716,233.83/2,664.42
6. Step 6: Final answer
   x = 2,145.39