Finding the Fourth Proportional to 2,621.86, 3,618.16 and 1,502.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,621.86 : 3,618.16 = 1,502.78 : x
2. Step 2: Convert to fraction form
   2,621.86/3,618.16 = 1,502.78/x
3. Step 3: Cross multiply
   2,621.86x = 3,618.16 × 1,502.78
4. Step 4: Simplify right side
   2,621.86x = 5,437,298.48
5. Step 5: Solve for x
   x = 5,437,298.48/2,621.86
6. Step 6: Final answer
   x = 2,073.83