Finding the Fourth Proportional to 2,563.86, 3,538.13 and 1,445.07

Step by Step Solution

1. Step 1: Write the proportion equation
   2,563.86 : 3,538.13 = 1,445.07 : x
2. Step 2: Convert to fraction form
   2,563.86/3,538.13 = 1,445.07/x
3. Step 3: Cross multiply
   2,563.86x = 3,538.13 × 1,445.07
4. Step 4: Simplify right side
   2,563.86x = 5,112,838.29
5. Step 5: Solve for x
   x = 5,112,838.29/2,563.86
6. Step 6: Final answer
   x = 1,994.20