Finding the Fourth Proportional to 2,285.61, 3,154.15 and 1,237.67

Step by Step Solution

1. Step 1: Write the proportion equation
   2,285.61 : 3,154.15 = 1,237.67 : x
2. Step 2: Convert to fraction form
   2,285.61/3,154.15 = 1,237.67/x
3. Step 3: Cross multiply
   2,285.61x = 3,154.15 × 1,237.67
4. Step 4: Simplify right side
   2,285.61x = 3,903,796.83
5. Step 5: Solve for x
   x = 3,903,796.83/2,285.61
6. Step 6: Final answer
   x = 1,707.99