Finding the Fourth Proportional to 1,646.12, 2,271.56 and 900.02

Step by Step Solution

1. Step 1: Write the proportion equation
   1,646.12 : 2,271.56 = 900.02 : x
2. Step 2: Convert to fraction form
   1,646.12/2,271.56 = 900.02/x
3. Step 3: Cross multiply
   1,646.12x = 2,271.56 × 900.02
4. Step 4: Simplify right side
   1,646.12x = 2,044,449.43
5. Step 5: Solve for x
   x = 2,044,449.43/1,646.12
6. Step 6: Final answer
   x = 1,241.98