Finding the Fourth Proportional to 1,055.54, 1,456.83 and 613.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,055.54 : 1,456.83 = 613.46 : x
2. Step 2: Convert to fraction form
   1,055.54/1,456.83 = 613.46/x
3. Step 3: Cross multiply
   1,055.54x = 1,456.83 × 613.46
4. Step 4: Simplify right side
   1,055.54x = 893,699.65
5. Step 5: Solve for x
   x = 893,699.65/1,055.54
6. Step 6: Final answer
   x = 846.68