Finding the Fourth Proportional to 1,705.32, 2,557.89 and 472.73

Step by Step Solution

1. Step 1: Write the proportion equation
   1,705.32 : 2,557.89 = 472.73 : x
2. Step 2: Convert to fraction form
   1,705.32/2,557.89 = 472.73/x
3. Step 3: Cross multiply
   1,705.32x = 2,557.89 × 472.73
4. Step 4: Simplify right side
   1,705.32x = 1,209,178.55
5. Step 5: Solve for x
   x = 1,209,178.55/1,705.32
6. Step 6: Final answer
   x = 709.06