Finding the Fourth Proportional to 2,191.94, 3,021.27 and 1,554.09

Step by Step Solution

1. Step 1: Write the proportion equation
   2,191.94 : 3,021.27 = 1,554.09 : x
2. Step 2: Convert to fraction form
   2,191.94/3,021.27 = 1,554.09/x
3. Step 3: Cross multiply
   2,191.94x = 3,021.27 × 1,554.09
4. Step 4: Simplify right side
   2,191.94x = 4,695,325.49
5. Step 5: Solve for x
   x = 4,695,325.49/2,191.94
6. Step 6: Final answer
   x = 2,142.09