Finding the Fourth Proportional to 2,621.98, 3,618.31 and 1,487.87

Step by Step Solution

1. Step 1: Write the proportion equation
   2,621.98 : 3,618.31 = 1,487.87 : x
2. Step 2: Convert to fraction form
   2,621.98/3,618.31 = 1,487.87/x
3. Step 3: Cross multiply
   2,621.98x = 3,618.31 × 1,487.87
4. Step 4: Simplify right side
   2,621.98x = 5,383,556.81
5. Step 5: Solve for x
   x = 5,383,556.81/2,621.98
6. Step 6: Final answer
   x = 2,053.24