Finding the Fourth Proportional to 1,579.82, 2,167.28 and 1,485.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,579.82 : 2,167.28 = 1,485.59 : x
2. Step 2: Convert to fraction form
   1,579.82/2,167.28 = 1,485.59/x
3. Step 3: Cross multiply
   1,579.82x = 2,167.28 × 1,485.59
4. Step 4: Simplify right side
   1,579.82x = 3,219,671.23
5. Step 5: Solve for x
   x = 3,219,671.23/1,579.82
6. Step 6: Final answer
   x = 2,038.01