Finding the Fourth Proportional to 1,612.19, 2,416.72 and 833.07

Step by Step Solution

1. Step 1: Write the proportion equation
   1,612.19 : 2,416.72 = 833.07 : x
2. Step 2: Convert to fraction form
   1,612.19/2,416.72 = 833.07/x
3. Step 3: Cross multiply
   1,612.19x = 2,416.72 × 833.07
4. Step 4: Simplify right side
   1,612.19x = 2,013,300.89
5. Step 5: Solve for x
   x = 2,013,300.89/1,612.19
6. Step 6: Final answer
   x = 1,248.80