Finding the Fourth Proportional to 1,508.80, 2,264.72 and 893.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,508.80 : 2,264.72 = 893.12 : x
2. Step 2: Convert to fraction form
   1,508.80/2,264.72 = 893.12/x
3. Step 3: Cross multiply
   1,508.80x = 2,264.72 × 893.12
4. Step 4: Simplify right side
   1,508.80x = 2,022,666.73
5. Step 5: Solve for x
   x = 2,022,666.73/1,508.80
6. Step 6: Final answer
   x = 1,340.58