Finding the Fourth Proportional to 1,383.05, 2,070.89 and 943.22

Step by Step Solution

1. Step 1: Write the proportion equation
   1,383.05 : 2,070.89 = 943.22 : x
2. Step 2: Convert to fraction form
   1,383.05/2,070.89 = 943.22/x
3. Step 3: Cross multiply
   1,383.05x = 2,070.89 × 943.22
4. Step 4: Simplify right side
   1,383.05x = 1,953,305.69
5. Step 5: Solve for x
   x = 1,953,305.69/1,383.05
6. Step 6: Final answer
   x = 1,412.32