Finding the Fourth Proportional to 2,620.31, 3,616.20 and 1,501.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,620.31 : 3,616.20 = 1,501.56 : x
2. Step 2: Convert to fraction form
   2,620.31/3,616.20 = 1,501.56/x
3. Step 3: Cross multiply
   2,620.31x = 3,616.20 × 1,501.56
4. Step 4: Simplify right side
   2,620.31x = 5,429,941.27
5. Step 5: Solve for x
   x = 5,429,941.27/2,620.31
6. Step 6: Final answer
   x = 2,072.26