Finding the Fourth Proportional to 3,689.67, 5,533.82 and 1,056.61

Step by Step Solution

1. Step 1: Write the proportion equation
   3,689.67 : 5,533.82 = 1,056.61 : x
2. Step 2: Convert to fraction form
   3,689.67/5,533.82 = 1,056.61/x
3. Step 3: Cross multiply
   3,689.67x = 5,533.82 × 1,056.61
4. Step 4: Simplify right side
   3,689.67x = 5,847,095.15
5. Step 5: Solve for x
   x = 5,847,095.15/3,689.67
6. Step 6: Final answer
   x = 1,584.72