Finding the Fourth Proportional to 1,501.59, 2,072.32 and 872.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,501.59 : 2,072.32 = 872.32 : x
2. Step 2: Convert to fraction form
   1,501.59/2,072.32 = 872.32/x
3. Step 3: Cross multiply
   1,501.59x = 2,072.32 × 872.32
4. Step 4: Simplify right side
   1,501.59x = 1,807,726.18
5. Step 5: Solve for x
   x = 1,807,726.18/1,501.59
6. Step 6: Final answer
   x = 1,203.87