Finding the Fourth Proportional to 1,501.56, 2,072.25 and 996.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,501.56 : 2,072.25 = 996.55 : x
2. Step 2: Convert to fraction form
   1,501.56/2,072.25 = 996.55/x
3. Step 3: Cross multiply
   1,501.56x = 2,072.25 × 996.55
4. Step 4: Simplify right side
   1,501.56x = 2,065,095.56
5. Step 5: Solve for x
   x = 2,065,095.56/1,501.56
6. Step 6: Final answer
   x = 1,375.30