Finding the Fourth Proportional to 1,861.49, 2,790.52 and 936.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,861.49 : 2,790.52 = 936.25 : x
2. Step 2: Convert to fraction form
   1,861.49/2,790.52 = 936.25/x
3. Step 3: Cross multiply
   1,861.49x = 2,790.52 × 936.25
4. Step 4: Simplify right side
   1,861.49x = 2,612,615.03
5. Step 5: Solve for x
   x = 2,612,615.03/1,861.49
6. Step 6: Final answer
   x = 1,403.51