Finding the Fourth Proportional to 1,416.69, 2,128.38 and 833.19

Step by Step Solution

1. Step 1: Write the proportion equation
   1,416.69 : 2,128.38 = 833.19 : x
2. Step 2: Convert to fraction form
   1,416.69/2,128.38 = 833.19/x
3. Step 3: Cross multiply
   1,416.69x = 2,128.38 × 833.19
4. Step 4: Simplify right side
   1,416.69x = 1,773,333.83
5. Step 5: Solve for x
   x = 1,773,333.83/1,416.69
6. Step 6: Final answer
   x = 1,251.74