Finding the Fourth Proportional to 3,521.58, 5,282.58 and 1,056.15

Step by Step Solution

1. Step 1: Write the proportion equation
   3,521.58 : 5,282.58 = 1,056.15 : x
2. Step 2: Convert to fraction form
   3,521.58/5,282.58 = 1,056.15/x
3. Step 3: Cross multiply
   3,521.58x = 5,282.58 × 1,056.15
4. Step 4: Simplify right side
   3,521.58x = 5,579,196.87
5. Step 5: Solve for x
   x = 5,579,196.87/3,521.58
6. Step 6: Final answer
   x = 1,584.29