Finding the Fourth Proportional to 1,333.73, 1,841.52 and 861.90

Step by Step Solution

1. Step 1: Write the proportion equation
   1,333.73 : 1,841.52 = 861.90 : x
2. Step 2: Convert to fraction form
   1,333.73/1,841.52 = 861.90/x
3. Step 3: Cross multiply
   1,333.73x = 1,841.52 × 861.90
4. Step 4: Simplify right side
   1,333.73x = 1,587,206.09
5. Step 5: Solve for x
   x = 1,587,206.09/1,333.73
6. Step 6: Final answer
   x = 1,190.05