Finding the Fourth Proportional to 1,495.59, 2,245.20 and 879.58

Step by Step Solution

1. Step 1: Write the proportion equation
   1,495.59 : 2,245.20 = 879.58 : x
2. Step 2: Convert to fraction form
   1,495.59/2,245.20 = 879.58/x
3. Step 3: Cross multiply
   1,495.59x = 2,245.20 × 879.58
4. Step 4: Simplify right side
   1,495.59x = 1,974,833.02
5. Step 5: Solve for x
   x = 1,974,833.02/1,495.59
6. Step 6: Final answer
   x = 1,320.44