Finding the Fourth Proportional to 2,061.63, 3,089.93 and 1,087.11

Step by Step Solution

1. Step 1: Write the proportion equation
   2,061.63 : 3,089.93 = 1,087.11 : x
2. Step 2: Convert to fraction form
   2,061.63/3,089.93 = 1,087.11/x
3. Step 3: Cross multiply
   2,061.63x = 3,089.93 × 1,087.11
4. Step 4: Simplify right side
   2,061.63x = 3,359,088.37
5. Step 5: Solve for x
   x = 3,359,088.37/2,061.63
6. Step 6: Final answer
   x = 1,629.34