Finding the Fourth Proportional to 1,865.50, 2,573.67 and 1,236.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,865.50 : 2,573.67 = 1,236.34 : x
2. Step 2: Convert to fraction form
   1,865.50/2,573.67 = 1,236.34/x
3. Step 3: Cross multiply
   1,865.50x = 2,573.67 × 1,236.34
4. Step 4: Simplify right side
   1,865.50x = 3,181,931.17
5. Step 5: Solve for x
   x = 3,181,931.17/1,865.50
6. Step 6: Final answer
   x = 1,705.67