Finding the Fourth Proportional to 1,222.86, 1,833.98 and 401.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,222.86 : 1,833.98 = 401.10 : x
2. Step 2: Convert to fraction form
   1,222.86/1,833.98 = 401.10/x
3. Step 3: Cross multiply
   1,222.86x = 1,833.98 × 401.10
4. Step 4: Simplify right side
   1,222.86x = 735,609.38
5. Step 5: Solve for x
   x = 735,609.38/1,222.86
6. Step 6: Final answer
   x = 601.55