Finding the Fourth Proportional to 2,111.93, 3,164.40 and 940.17

Step by Step Solution

1. Step 1: Write the proportion equation
   2,111.93 : 3,164.40 = 940.17 : x
2. Step 2: Convert to fraction form
   2,111.93/3,164.40 = 940.17/x
3. Step 3: Cross multiply
   2,111.93x = 3,164.40 × 940.17
4. Step 4: Simplify right side
   2,111.93x = 2,975,073.95
5. Step 5: Solve for x
   x = 2,975,073.95/2,111.93
6. Step 6: Final answer
   x = 1,408.70