Finding the Fourth Proportional to 1,141.32, 1,572.24 and 1,022.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,141.32 : 1,572.24 = 1,022.52 : x
2. Step 2: Convert to fraction form
   1,141.32/1,572.24 = 1,022.52/x
3. Step 3: Cross multiply
   1,141.32x = 1,572.24 × 1,022.52
4. Step 4: Simplify right side
   1,141.32x = 1,607,646.84
5. Step 5: Solve for x
   x = 1,607,646.84/1,141.32
6. Step 6: Final answer
   x = 1,408.59