Finding the Fourth Proportional to 1,501.74, 2,072.72 and 872.37

Step by Step Solution

1. Step 1: Write the proportion equation
   1,501.74 : 2,072.72 = 872.37 : x
2. Step 2: Convert to fraction form
   1,501.74/2,072.72 = 872.37/x
3. Step 3: Cross multiply
   1,501.74x = 2,072.72 × 872.37
4. Step 4: Simplify right side
   1,501.74x = 1,808,180.93
5. Step 5: Solve for x
   x = 1,808,180.93/1,501.74
6. Step 6: Final answer
   x = 1,204.06