Finding the Fourth Proportional to 1,641.52, 2,462.88 and 716.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,641.52 : 2,462.88 = 716.56 : x
2. Step 2: Convert to fraction form
   1,641.52/2,462.88 = 716.56/x
3. Step 3: Cross multiply
   1,641.52x = 2,462.88 × 716.56
4. Step 4: Simplify right side
   1,641.52x = 1,764,801.29
5. Step 5: Solve for x
   x = 1,764,801.29/1,641.52
6. Step 6: Final answer
   x = 1,075.10