Finding the Fourth Proportional to 1,399.47, 2,095.38 and 1,073.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,399.47 : 2,095.38 = 1,073.31 : x
2. Step 2: Convert to fraction form
   1,399.47/2,095.38 = 1,073.31/x
3. Step 3: Cross multiply
   1,399.47x = 2,095.38 × 1,073.31
4. Step 4: Simplify right side
   1,399.47x = 2,248,992.31
5. Step 5: Solve for x
   x = 2,248,992.31/1,399.47
6. Step 6: Final answer
   x = 1,607.03