Finding the Fourth Proportional to 1,401.43, 2,109.45 and 1,190.02

Step by Step Solution

1. Step 1: Write the proportion equation
   1,401.43 : 2,109.45 = 1,190.02 : x
2. Step 2: Convert to fraction form
   1,401.43/2,109.45 = 1,190.02/x
3. Step 3: Cross multiply
   1,401.43x = 2,109.45 × 1,190.02
4. Step 4: Simplify right side
   1,401.43x = 2,510,287.69
5. Step 5: Solve for x
   x = 2,510,287.69/1,401.43
6. Step 6: Final answer
   x = 1,791.23