Finding the Fourth Proportional to 1,377.34, 2,066.02 and 404.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,377.34 : 2,066.02 = 404.12 : x
2. Step 2: Convert to fraction form
   1,377.34/2,066.02 = 404.12/x
3. Step 3: Cross multiply
   1,377.34x = 2,066.02 × 404.12
4. Step 4: Simplify right side
   1,377.34x = 834,920.00
5. Step 5: Solve for x
   x = 834,920.00/1,377.34
6. Step 6: Final answer
   x = 606.18