Finding the Fourth Proportional to 1,705.20, 2,353.29 and 949.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,705.20 : 2,353.29 = 949.10 : x
2. Step 2: Convert to fraction form
   1,705.20/2,353.29 = 949.10/x
3. Step 3: Cross multiply
   1,705.20x = 2,353.29 × 949.10
4. Step 4: Simplify right side
   1,705.20x = 2,233,495.77
5. Step 5: Solve for x
   x = 2,233,495.77/1,705.20
6. Step 6: Final answer
   x = 1,309.81