Finding the Fourth Proportional to 1,201.10, 1,801.69 and 335.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,201.10 : 1,801.69 = 335.34 : x
2. Step 2: Convert to fraction form
   1,201.10/1,801.69 = 335.34/x
3. Step 3: Cross multiply
   1,201.10x = 1,801.69 × 335.34
4. Step 4: Simplify right side
   1,201.10x = 604,178.72
5. Step 5: Solve for x
   x = 604,178.72/1,201.10
6. Step 6: Final answer
   x = 503.02