Finding the Fourth Proportional to 2,885.47, 4,328.30 and 937.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,885.47 : 4,328.30 = 937.69 : x
2. Step 2: Convert to fraction form
   2,885.47/4,328.30 = 937.69/x
3. Step 3: Cross multiply
   2,885.47x = 4,328.30 × 937.69
4. Step 4: Simplify right side
   2,885.47x = 4,058,595.15
5. Step 5: Solve for x
   x = 4,058,595.15/2,885.47
6. Step 6: Final answer
   x = 1,406.56