Finding the Fourth Proportional to 1,404.43, 1,938.24 and 807.01

Step by Step Solution

1. Step 1: Write the proportion equation
   1,404.43 : 1,938.24 = 807.01 : x
2. Step 2: Convert to fraction form
   1,404.43/1,938.24 = 807.01/x
3. Step 3: Cross multiply
   1,404.43x = 1,938.24 × 807.01
4. Step 4: Simplify right side
   1,404.43x = 1,564,174.22
5. Step 5: Solve for x
   x = 1,564,174.22/1,404.43
6. Step 6: Final answer
   x = 1,113.75