Finding the Fourth Proportional to 2,558.72, 3,528.32 and 1,773.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,558.72 : 3,528.32 = 1,773.12 : x
2. Step 2: Convert to fraction form
   2,558.72/3,528.32 = 1,773.12/x
3. Step 3: Cross multiply
   2,558.72x = 3,528.32 × 1,773.12
4. Step 4: Simplify right side
   2,558.72x = 6,256,134.76
5. Step 5: Solve for x
   x = 6,256,134.76/2,558.72
6. Step 6: Final answer
   x = 2,445.03