Finding the Fourth Proportional to 1,515.00, 2,090.56 and 885.33

Step by Step Solution

1. Step 1: Write the proportion equation
   1,515.00 : 2,090.56 = 885.33 : x
2. Step 2: Convert to fraction form
   1,515.00/2,090.56 = 885.33/x
3. Step 3: Cross multiply
   1,515.00x = 2,090.56 × 885.33
4. Step 4: Simplify right side
   1,515.00x = 1,850,834.93
5. Step 5: Solve for x
   x = 1,850,834.93/1,515.00
6. Step 6: Final answer
   x = 1,221.67