Finding the Fourth Proportional to 1,111.73, 1,666.37 and 836.93

Step by Step Solution

1. Step 1: Write the proportion equation
   1,111.73 : 1,666.37 = 836.93 : x
2. Step 2: Convert to fraction form
   1,111.73/1,666.37 = 836.93/x
3. Step 3: Cross multiply
   1,111.73x = 1,666.37 × 836.93
4. Step 4: Simplify right side
   1,111.73x = 1,394,641.30
5. Step 5: Solve for x
   x = 1,394,641.30/1,111.73
6. Step 6: Final answer
   x = 1,254.48