Finding the Fourth Proportional to 2,153.99, 2,971.79 and 1,314.39

Step by Step Solution

1. Step 1: Write the proportion equation
   2,153.99 : 2,971.79 = 1,314.39 : x
2. Step 2: Convert to fraction form
   2,153.99/2,971.79 = 1,314.39/x
3. Step 3: Cross multiply
   2,153.99x = 2,971.79 × 1,314.39
4. Step 4: Simplify right side
   2,153.99x = 3,906,100.56
5. Step 5: Solve for x
   x = 3,906,100.56/2,153.99
6. Step 6: Final answer
   x = 1,813.42