Finding the Fourth Proportional to 1,612.06, 2,223.72 and 948.79

Step by Step Solution

1. Step 1: Write the proportion equation
   1,612.06 : 2,223.72 = 948.79 : x
2. Step 2: Convert to fraction form
   1,612.06/2,223.72 = 948.79/x
3. Step 3: Cross multiply
   1,612.06x = 2,223.72 × 948.79
4. Step 4: Simplify right side
   1,612.06x = 2,109,843.30
5. Step 5: Solve for x
   x = 2,109,843.30/1,612.06
6. Step 6: Final answer
   x = 1,308.79