Finding the Fourth Proportional to 1,054.79, 1,454.86 and 656.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,054.79 : 1,454.86 = 656.12 : x
2. Step 2: Convert to fraction form
   1,054.79/1,454.86 = 656.12/x
3. Step 3: Cross multiply
   1,054.79x = 1,454.86 × 656.12
4. Step 4: Simplify right side
   1,054.79x = 954,559.02
5. Step 5: Solve for x
   x = 954,559.02/1,054.79
6. Step 6: Final answer
   x = 904.98