Finding the Fourth Proportional to 1,429.84, 2,146.29 and 1,266.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,429.84 : 2,146.29 = 1,266.32 : x
2. Step 2: Convert to fraction form
   1,429.84/2,146.29 = 1,266.32/x
3. Step 3: Cross multiply
   1,429.84x = 2,146.29 × 1,266.32
4. Step 4: Simplify right side
   1,429.84x = 2,717,897.69
5. Step 5: Solve for x
   x = 2,717,897.69/1,429.84
6. Step 6: Final answer
   x = 1,900.84