Finding the Fourth Proportional to 1,773.61, 2,666.42 and 1,429.36

Step by Step Solution

1. Step 1: Write the proportion equation
   1,773.61 : 2,666.42 = 1,429.36 : x
2. Step 2: Convert to fraction form
   1,773.61/2,666.42 = 1,429.36/x
3. Step 3: Cross multiply
   1,773.61x = 2,666.42 × 1,429.36
4. Step 4: Simplify right side
   1,773.61x = 3,811,253.61
5. Step 5: Solve for x
   x = 3,811,253.61/1,773.61
6. Step 6: Final answer
   x = 2,148.87