Finding the Fourth Proportional to 2,111.23, 2,913.58 and 1,401.85

Step by Step Solution

1. Step 1: Write the proportion equation
   2,111.23 : 2,913.58 = 1,401.85 : x
2. Step 2: Convert to fraction form
   2,111.23/2,913.58 = 1,401.85/x
3. Step 3: Cross multiply
   2,111.23x = 2,913.58 × 1,401.85
4. Step 4: Simplify right side
   2,111.23x = 4,084,418.88
5. Step 5: Solve for x
   x = 4,084,418.88/2,111.23
6. Step 6: Final answer
   x = 1,934.61