Finding the Fourth Proportional to 1,635.72, 2,257.78 and 937.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,635.72 : 2,257.78 = 937.56 : x
2. Step 2: Convert to fraction form
   1,635.72/2,257.78 = 937.56/x
3. Step 3: Cross multiply
   1,635.72x = 2,257.78 × 937.56
4. Step 4: Simplify right side
   1,635.72x = 2,116,804.22
5. Step 5: Solve for x
   x = 2,116,804.22/1,635.72
6. Step 6: Final answer
   x = 1,294.11