Finding the Fourth Proportional to 1,337.70, 1,839.51 and 1,190.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,337.70 : 1,839.51 = 1,190.10 : x
2. Step 2: Convert to fraction form
   1,337.70/1,839.51 = 1,190.10/x
3. Step 3: Cross multiply
   1,337.70x = 1,839.51 × 1,190.10
4. Step 4: Simplify right side
   1,337.70x = 2,189,200.85
5. Step 5: Solve for x
   x = 2,189,200.85/1,337.70
6. Step 6: Final answer
   x = 1,636.54