Finding the Fourth Proportional to 1,820.86, 2,730.76 and 1,040.71

Step by Step Solution

1. Step 1: Write the proportion equation
   1,820.86 : 2,730.76 = 1,040.71 : x
2. Step 2: Convert to fraction form
   1,820.86/2,730.76 = 1,040.71/x
3. Step 3: Cross multiply
   1,820.86x = 2,730.76 × 1,040.71
4. Step 4: Simplify right side
   1,820.86x = 2,841,936.63
5. Step 5: Solve for x
   x = 2,841,936.63/1,820.86
6. Step 6: Final answer
   x = 1,560.77