Finding the Fourth Proportional to 2,285.96, 3,154.61 and 1,238.02

Step by Step Solution

1. Step 1: Write the proportion equation
   2,285.96 : 3,154.61 = 1,238.02 : x
2. Step 2: Convert to fraction form
   2,285.96/3,154.61 = 1,238.02/x
3. Step 3: Cross multiply
   2,285.96x = 3,154.61 × 1,238.02
4. Step 4: Simplify right side
   2,285.96x = 3,905,477.31
5. Step 5: Solve for x
   x = 3,905,477.31/2,285.96
6. Step 6: Final answer
   x = 1,708.46