Finding the Fourth Proportional to 1,801.16, 2,485.56 and 1,015.22

Step by Step Solution

1. Step 1: Write the proportion equation
   1,801.16 : 2,485.56 = 1,015.22 : x
2. Step 2: Convert to fraction form
   1,801.16/2,485.56 = 1,015.22/x
3. Step 3: Cross multiply
   1,801.16x = 2,485.56 × 1,015.22
4. Step 4: Simplify right side
   1,801.16x = 2,523,390.22
5. Step 5: Solve for x
   x = 2,523,390.22/1,801.16
6. Step 6: Final answer
   x = 1,400.98