Finding the Fourth Proportional to 1,383.68, 2,076.56 and 943.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,383.68 : 2,076.56 = 943.89 : x
2. Step 2: Convert to fraction form
   1,383.68/2,076.56 = 943.89/x
3. Step 3: Cross multiply
   1,383.68x = 2,076.56 × 943.89
4. Step 4: Simplify right side
   1,383.68x = 1,960,031.71
5. Step 5: Solve for x
   x = 1,960,031.71/1,383.68
6. Step 6: Final answer
   x = 1,416.54