Finding the Fourth Proportional to 2,111.33, 2,913.53 and 1,226.99

Step by Step Solution

1. Step 1: Write the proportion equation
   2,111.33 : 2,913.53 = 1,226.99 : x
2. Step 2: Convert to fraction form
   2,111.33/2,913.53 = 1,226.99/x
3. Step 3: Cross multiply
   2,111.33x = 2,913.53 × 1,226.99
4. Step 4: Simplify right side
   2,111.33x = 3,574,851.47
5. Step 5: Solve for x
   x = 3,574,851.47/2,111.33
6. Step 6: Final answer
   x = 1,693.18