Finding the Fourth Proportional to 1,384.09, 1,911.54 and 943.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,384.09 : 1,911.54 = 943.18 : x
2. Step 2: Convert to fraction form
   1,384.09/1,911.54 = 943.18/x
3. Step 3: Cross multiply
   1,384.09x = 1,911.54 × 943.18
4. Step 4: Simplify right side
   1,384.09x = 1,802,926.30
5. Step 5: Solve for x
   x = 1,802,926.30/1,384.09
6. Step 6: Final answer
   x = 1,302.61