Finding the Fourth Proportional to 1,087.93, 1,631.34 and 357.41

Step by Step Solution

1. Step 1: Write the proportion equation
   1,087.93 : 1,631.34 = 357.41 : x
2. Step 2: Convert to fraction form
   1,087.93/1,631.34 = 357.41/x
3. Step 3: Cross multiply
   1,087.93x = 1,631.34 × 357.41
4. Step 4: Simplify right side
   1,087.93x = 583,061.31
5. Step 5: Solve for x
   x = 583,061.31/1,087.93
6. Step 6: Final answer
   x = 535.94