Finding the Fourth Proportional to 2,042.03, 2,817.89 and 1,145.66

Step by Step Solution

1. Step 1: Write the proportion equation
   2,042.03 : 2,817.89 = 1,145.66 : x
2. Step 2: Convert to fraction form
   2,042.03/2,817.89 = 1,145.66/x
3. Step 3: Cross multiply
   2,042.03x = 2,817.89 × 1,145.66
4. Step 4: Simplify right side
   2,042.03x = 3,228,332.63
5. Step 5: Solve for x
   x = 3,228,332.63/2,042.03
6. Step 6: Final answer
   x = 1,580.95