Finding the Fourth Proportional to 2,666.36, 4,002.06 and 1,434.80

Step by Step Solution

1. Step 1: Write the proportion equation
   2,666.36 : 4,002.06 = 1,434.80 : x
2. Step 2: Convert to fraction form
   2,666.36/4,002.06 = 1,434.80/x
3. Step 3: Cross multiply
   2,666.36x = 4,002.06 × 1,434.80
4. Step 4: Simplify right side
   2,666.36x = 5,742,155.69
5. Step 5: Solve for x
   x = 5,742,155.69/2,666.36
6. Step 6: Final answer
   x = 2,153.56