Finding the Fourth Proportional to 2,111.19, 2,913.89 and 1,226.94

Step by Step Solution

1. Step 1: Write the proportion equation
   2,111.19 : 2,913.89 = 1,226.94 : x
2. Step 2: Convert to fraction form
   2,111.19/2,913.89 = 1,226.94/x
3. Step 3: Cross multiply
   2,111.19x = 2,913.89 × 1,226.94
4. Step 4: Simplify right side
   2,111.19x = 3,575,162.06
5. Step 5: Solve for x
   x = 3,575,162.06/2,111.19
6. Step 6: Final answer
   x = 1,693.43