Finding the Fourth Proportional to 1,054.34, 1,454.72 and 705.09

Step by Step Solution

1. Step 1: Write the proportion equation
   1,054.34 : 1,454.72 = 705.09 : x
2. Step 2: Convert to fraction form
   1,054.34/1,454.72 = 705.09/x
3. Step 3: Cross multiply
   1,054.34x = 1,454.72 × 705.09
4. Step 4: Simplify right side
   1,054.34x = 1,025,705.00
5. Step 5: Solve for x
   x = 1,025,705.00/1,054.34
6. Step 6: Final answer
   x = 972.85