Finding the Fourth Proportional to 1,485.21, 2,049.25 and 887.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,485.21 : 2,049.25 = 887.59 : x
2. Step 2: Convert to fraction form
   1,485.21/2,049.25 = 887.59/x
3. Step 3: Cross multiply
   1,485.21x = 2,049.25 × 887.59
4. Step 4: Simplify right side
   1,485.21x = 1,818,895.81
5. Step 5: Solve for x
   x = 1,818,895.81/1,485.21
6. Step 6: Final answer
   x = 1,224.67