Finding the Fourth Proportional to 1,353.72, 1,870.83 and 1,022.01

Step by Step Solution

1. Step 1: Write the proportion equation
   1,353.72 : 1,870.83 = 1,022.01 : x
2. Step 2: Convert to fraction form
   1,353.72/1,870.83 = 1,022.01/x
3. Step 3: Cross multiply
   1,353.72x = 1,870.83 × 1,022.01
4. Step 4: Simplify right side
   1,353.72x = 1,912,006.97
5. Step 5: Solve for x
   x = 1,912,006.97/1,353.72
6. Step 6: Final answer
   x = 1,412.41