Finding the Fourth Proportional to 1,061.77, 1,464.91 and 613.58

Step by Step Solution

1. Step 1: Write the proportion equation
   1,061.77 : 1,464.91 = 613.58 : x
2. Step 2: Convert to fraction form
   1,061.77/1,464.91 = 613.58/x
3. Step 3: Cross multiply
   1,061.77x = 1,464.91 × 613.58
4. Step 4: Simplify right side
   1,061.77x = 898,839.48
5. Step 5: Solve for x
   x = 898,839.48/1,061.77
6. Step 6: Final answer
   x = 846.55