Finding the Fourth Proportional to 1,334.19, 1,839.55 and 1,097.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,334.19 : 1,839.55 = 1,097.31 : x
2. Step 2: Convert to fraction form
   1,334.19/1,839.55 = 1,097.31/x
3. Step 3: Cross multiply
   1,334.19x = 1,839.55 × 1,097.31
4. Step 4: Simplify right side
   1,334.19x = 2,018,556.61
5. Step 5: Solve for x
   x = 2,018,556.61/1,334.19
6. Step 6: Final answer
   x = 1,512.95