Finding the Fourth Proportional to 1,309.34, 1,973.01 and 1,083.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,309.34 : 1,973.01 = 1,083.31 : x
2. Step 2: Convert to fraction form
   1,309.34/1,973.01 = 1,083.31/x
3. Step 3: Cross multiply
   1,309.34x = 1,973.01 × 1,083.31
4. Step 4: Simplify right side
   1,309.34x = 2,137,381.46
5. Step 5: Solve for x
   x = 2,137,381.46/1,309.34
6. Step 6: Final answer
   x = 1,632.41