Finding the Fourth Proportional to 1,654.94, 2,283.72 and 991.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,654.94 : 2,283.72 = 991.82 : x
2. Step 2: Convert to fraction form
   1,654.94/2,283.72 = 991.82/x
3. Step 3: Cross multiply
   1,654.94x = 2,283.72 × 991.82
4. Step 4: Simplify right side
   1,654.94x = 2,265,039.17
5. Step 5: Solve for x
   x = 2,265,039.17/1,654.94
6. Step 6: Final answer
   x = 1,368.65