Finding the Fourth Proportional to 1,653.89, 2,282.38 and 907.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,653.89 : 2,282.38 = 907.83 : x
2. Step 2: Convert to fraction form
   1,653.89/2,282.38 = 907.83/x
3. Step 3: Cross multiply
   1,653.89x = 2,282.38 × 907.83
4. Step 4: Simplify right side
   1,653.89x = 2,072,014.60
5. Step 5: Solve for x
   x = 2,072,014.60/1,653.89
6. Step 6: Final answer
   x = 1,252.81