Finding the Fourth Proportional to 2,621.84, 3,618.24 and 1,502.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,621.84 : 3,618.24 = 1,502.78 : x
2. Step 2: Convert to fraction form
   2,621.84/3,618.24 = 1,502.78/x
3. Step 3: Cross multiply
   2,621.84x = 3,618.24 × 1,502.78
4. Step 4: Simplify right side
   2,621.84x = 5,437,418.71
5. Step 5: Solve for x
   x = 5,437,418.71/2,621.84
6. Step 6: Final answer
   x = 2,073.89