Finding the Fourth Proportional to 1,865.38, 2,573.46 and 1,236.22

Step by Step Solution

1. Step 1: Write the proportion equation
   1,865.38 : 2,573.46 = 1,236.22 : x
2. Step 2: Convert to fraction form
   1,865.38/2,573.46 = 1,236.22/x
3. Step 3: Cross multiply
   1,865.38x = 2,573.46 × 1,236.22
4. Step 4: Simplify right side
   1,865.38x = 3,181,362.72
5. Step 5: Solve for x
   x = 3,181,362.72/1,865.38
6. Step 6: Final answer
   x = 1,705.48