Finding the Fourth Proportional to 1,429.39, 2,131.06 and 1,393.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,429.39 : 2,131.06 = 1,393.48 : x
2. Step 2: Convert to fraction form
   1,429.39/2,131.06 = 1,393.48/x
3. Step 3: Cross multiply
   1,429.39x = 2,131.06 × 1,393.48
4. Step 4: Simplify right side
   1,429.39x = 2,969,589.49
5. Step 5: Solve for x
   x = 2,969,589.49/1,429.39
6. Step 6: Final answer
   x = 2,077.52