Finding the Fourth Proportional to 1,095.36, 1,642.59 and 401.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,095.36 : 1,642.59 = 401.83 : x
2. Step 2: Convert to fraction form
   1,095.36/1,642.59 = 401.83/x
3. Step 3: Cross multiply
   1,095.36x = 1,642.59 × 401.83
4. Step 4: Simplify right side
   1,095.36x = 660,037.83
5. Step 5: Solve for x
   x = 660,037.83/1,095.36
6. Step 6: Final answer
   x = 602.58