Finding the Fourth Proportional to 2,041.47, 2,817.42 and 1,145.36

Step by Step Solution

1. Step 1: Write the proportion equation
   2,041.47 : 2,817.42 = 1,145.36 : x
2. Step 2: Convert to fraction form
   2,041.47/2,817.42 = 1,145.36/x
3. Step 3: Cross multiply
   2,041.47x = 2,817.42 × 1,145.36
4. Step 4: Simplify right side
   2,041.47x = 3,226,960.17
5. Step 5: Solve for x
   x = 3,226,960.17/2,041.47
6. Step 6: Final answer
   x = 1,580.70