Finding the Fourth Proportional to 2,111.98, 2,914.74 and 1,167.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,111.98 : 2,914.74 = 1,167.98 : x
2. Step 2: Convert to fraction form
   2,111.98/2,914.74 = 1,167.98/x
3. Step 3: Cross multiply
   2,111.98x = 2,914.74 × 1,167.98
4. Step 4: Simplify right side
   2,111.98x = 3,404,358.03
5. Step 5: Solve for x
   x = 3,404,358.03/2,111.98
6. Step 6: Final answer
   x = 1,611.93