Finding the Fourth Proportional to 1,563.49, 2,155.57 and 1,344.79

Step by Step Solution

1. Step 1: Write the proportion equation
   1,563.49 : 2,155.57 = 1,344.79 : x
2. Step 2: Convert to fraction form
   1,563.49/2,155.57 = 1,344.79/x
3. Step 3: Cross multiply
   1,563.49x = 2,155.57 × 1,344.79
4. Step 4: Simplify right side
   1,563.49x = 2,898,788.98
5. Step 5: Solve for x
   x = 2,898,788.98/1,563.49
6. Step 6: Final answer
   x = 1,854.05