Finding the Fourth Proportional to 1,864.24, 2,795.86 and 985.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,864.24 : 2,795.86 = 985.56 : x
2. Step 2: Convert to fraction form
   1,864.24/2,795.86 = 985.56/x
3. Step 3: Cross multiply
   1,864.24x = 2,795.86 × 985.56
4. Step 4: Simplify right side
   1,864.24x = 2,755,487.78
5. Step 5: Solve for x
   x = 2,755,487.78/1,864.24
6. Step 6: Final answer
   x = 1,478.08