Finding the Fourth Proportional to 1,054.96, 1,454.32 and 722.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,054.96 : 1,454.32 = 722.86 : x
2. Step 2: Convert to fraction form
   1,054.96/1,454.32 = 722.86/x
3. Step 3: Cross multiply
   1,054.96x = 1,454.32 × 722.86
4. Step 4: Simplify right side
   1,054.96x = 1,051,269.76
5. Step 5: Solve for x
   x = 1,051,269.76/1,054.96
6. Step 6: Final answer
   x = 996.50