Finding the Fourth Proportional to 3,586.59, 5,377.96 and 1,087.43

Step by Step Solution

1. Step 1: Write the proportion equation
   3,586.59 : 5,377.96 = 1,087.43 : x
2. Step 2: Convert to fraction form
   3,586.59/5,377.96 = 1,087.43/x
3. Step 3: Cross multiply
   3,586.59x = 5,377.96 × 1,087.43
4. Step 4: Simplify right side
   3,586.59x = 5,848,155.04
5. Step 5: Solve for x
   x = 5,848,155.04/3,586.59
6. Step 6: Final answer
   x = 1,630.56