Finding the Fourth Proportional to 1,095.59, 1,642.82 and 402.08

Step by Step Solution

1. Step 1: Write the proportion equation
   1,095.59 : 1,642.82 = 402.08 : x
2. Step 2: Convert to fraction form
   1,095.59/1,642.82 = 402.08/x
3. Step 3: Cross multiply
   1,095.59x = 1,642.82 × 402.08
4. Step 4: Simplify right side
   1,095.59x = 660,550.18
5. Step 5: Solve for x
   x = 660,550.18/1,095.59
6. Step 6: Final answer
   x = 602.92