Finding the Fourth Proportional to 1,415.89, 2,122.81 and 952.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,415.89 : 2,122.81 = 952.52 : x
2. Step 2: Convert to fraction form
   1,415.89/2,122.81 = 952.52/x
3. Step 3: Cross multiply
   1,415.89x = 2,122.81 × 952.52
4. Step 4: Simplify right side
   1,415.89x = 2,022,018.98
5. Step 5: Solve for x
   x = 2,022,018.98/1,415.89
6. Step 6: Final answer
   x = 1,428.09