Finding the Fourth Proportional to 1,662.91, 2,293.64 and 1,429.63

Step by Step Solution

1. Step 1: Write the proportion equation
   1,662.91 : 2,293.64 = 1,429.63 : x
2. Step 2: Convert to fraction form
   1,662.91/2,293.64 = 1,429.63/x
3. Step 3: Cross multiply
   1,662.91x = 2,293.64 × 1,429.63
4. Step 4: Simplify right side
   1,662.91x = 3,279,045.09
5. Step 5: Solve for x
   x = 3,279,045.09/1,662.91
6. Step 6: Final answer
   x = 1,971.88