Finding the Fourth Proportional to 2,564.77, 3,538.76 and 1,445.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,564.77 : 3,538.76 = 1,445.71 : x
2. Step 2: Convert to fraction form
   2,564.77/3,538.76 = 1,445.71/x
3. Step 3: Cross multiply
   2,564.77x = 3,538.76 × 1,445.71
4. Step 4: Simplify right side
   2,564.77x = 5,116,020.72
5. Step 5: Solve for x
   x = 5,116,020.72/2,564.77
6. Step 6: Final answer
   x = 1,994.73