Finding the Fourth Proportional to 2,028.04, 3,042.77 and 931.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,028.04 : 3,042.77 = 931.50 : x
2. Step 2: Convert to fraction form
   2,028.04/3,042.77 = 931.50/x
3. Step 3: Cross multiply
   2,028.04x = 3,042.77 × 931.50
4. Step 4: Simplify right side
   2,028.04x = 2,834,335.60
5. Step 5: Solve for x
   x = 2,834,335.60/2,028.04
6. Step 6: Final answer
   x = 1,397.58