Finding the Fourth Proportional to 1,478.31, 2,200.01 and 1,429.09

Step by Step Solution

1. Step 1: Write the proportion equation
   1,478.31 : 2,200.01 = 1,429.09 : x
2. Step 2: Convert to fraction form
   1,478.31/2,200.01 = 1,429.09/x
3. Step 3: Cross multiply
   1,478.31x = 2,200.01 × 1,429.09
4. Step 4: Simplify right side
   1,478.31x = 3,144,012.29
5. Step 5: Solve for x
   x = 3,144,012.29/1,478.31
6. Step 6: Final answer
   x = 2,126.76