Finding the Fourth Proportional to 1,401.91, 1,933.36 and 1,122.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,401.91 : 1,933.36 = 1,122.18 : x
2. Step 2: Convert to fraction form
   1,401.91/1,933.36 = 1,122.18/x
3. Step 3: Cross multiply
   1,401.91x = 1,933.36 × 1,122.18
4. Step 4: Simplify right side
   1,401.91x = 2,169,577.92
5. Step 5: Solve for x
   x = 2,169,577.92/1,401.91
6. Step 6: Final answer
   x = 1,547.59