Finding the Fourth Proportional to 1,085.01, 1,496.96 and 612.84

Step by Step Solution

1. Step 1: Write the proportion equation
   1,085.01 : 1,496.96 = 612.84 : x
2. Step 2: Convert to fraction form
   1,085.01/1,496.96 = 612.84/x
3. Step 3: Cross multiply
   1,085.01x = 1,496.96 × 612.84
4. Step 4: Simplify right side
   1,085.01x = 917,393.90
5. Step 5: Solve for x
   x = 917,393.90/1,085.01
6. Step 6: Final answer
   x = 845.52