Finding the Fourth Proportional to 3,091.89, 4,636.89 and 1,242.03

Step by Step Solution

1. Step 1: Write the proportion equation
   3,091.89 : 4,636.89 = 1,242.03 : x
2. Step 2: Convert to fraction form
   3,091.89/4,636.89 = 1,242.03/x
3. Step 3: Cross multiply
   3,091.89x = 4,636.89 × 1,242.03
4. Step 4: Simplify right side
   3,091.89x = 5,759,156.49
5. Step 5: Solve for x
   x = 5,759,156.49/3,091.89
6. Step 6: Final answer
   x = 1,862.67