Finding the Fourth Proportional to 2,620.86, 3,616.78 and 1,501.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,620.86 : 3,616.78 = 1,501.78 : x
2. Step 2: Convert to fraction form
   2,620.86/3,616.78 = 1,501.78/x
3. Step 3: Cross multiply
   2,620.86x = 3,616.78 × 1,501.78
4. Step 4: Simplify right side
   2,620.86x = 5,431,607.87
5. Step 5: Solve for x
   x = 5,431,607.87/2,620.86
6. Step 6: Final answer
   x = 2,072.45