Finding the Fourth Proportional to 1,547.37, 2,320.25 and 1,331.91

Step by Step Solution

1. Step 1: Write the proportion equation
   1,547.37 : 2,320.25 = 1,331.91 : x
2. Step 2: Convert to fraction form
   1,547.37/2,320.25 = 1,331.91/x
3. Step 3: Cross multiply
   1,547.37x = 2,320.25 × 1,331.91
4. Step 4: Simplify right side
   1,547.37x = 3,090,357.52
5. Step 5: Solve for x
   x = 3,090,357.52/1,547.37
6. Step 6: Final answer
   x = 1,997.17