Finding the Fourth Proportional to 1,654.55, 2,282.71 and 991.62

Step by Step Solution

1. Step 1: Write the proportion equation
   1,654.55 : 2,282.71 = 991.62 : x
2. Step 2: Convert to fraction form
   1,654.55/2,282.71 = 991.62/x
3. Step 3: Cross multiply
   1,654.55x = 2,282.71 × 991.62
4. Step 4: Simplify right side
   1,654.55x = 2,263,580.89
5. Step 5: Solve for x
   x = 2,263,580.89/1,654.55
6. Step 6: Final answer
   x = 1,368.09