Finding the Fourth Proportional to 1,674.90, 2,309.99 and 1,563.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,674.90 : 2,309.99 = 1,563.12 : x
2. Step 2: Convert to fraction form
   1,674.90/2,309.99 = 1,563.12/x
3. Step 3: Cross multiply
   1,674.90x = 2,309.99 × 1,563.12
4. Step 4: Simplify right side
   1,674.90x = 3,610,783.75
5. Step 5: Solve for x
   x = 3,610,783.75/1,674.90
6. Step 6: Final answer
   x = 2,155.82