Finding the Fourth Proportional to 1,584.03, 2,186.00 and 885.45

Step by Step Solution

1. Step 1: Write the proportion equation
   1,584.03 : 2,186.00 = 885.45 : x
2. Step 2: Convert to fraction form
   1,584.03/2,186.00 = 885.45/x
3. Step 3: Cross multiply
   1,584.03x = 2,186.00 × 885.45
4. Step 4: Simplify right side
   1,584.03x = 1,935,589.27
5. Step 5: Solve for x
   x = 1,935,589.27/1,584.03
6. Step 6: Final answer
   x = 1,221.94