Finding the Fourth Proportional to 1,477.34, 2,215.85 and 927.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,477.34 : 2,215.85 = 927.89 : x
2. Step 2: Convert to fraction form
   1,477.34/2,215.85 = 927.89/x
3. Step 3: Cross multiply
   1,477.34x = 2,215.85 × 927.89
4. Step 4: Simplify right side
   1,477.34x = 2,056,049.34
5. Step 5: Solve for x
   x = 2,056,049.34/1,477.34
6. Step 6: Final answer
   x = 1,391.73