Finding the Fourth Proportional to 1,646.73, 2,272.52 and 900.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,646.73 : 2,272.52 = 900.69 : x
2. Step 2: Convert to fraction form
   1,646.73/2,272.52 = 900.69/x
3. Step 3: Cross multiply
   1,646.73x = 2,272.52 × 900.69
4. Step 4: Simplify right side
   1,646.73x = 2,046,829.77
5. Step 5: Solve for x
   x = 2,046,829.77/1,646.73
6. Step 6: Final answer
   x = 1,242.97