Finding the Fourth Proportional to 1,370.04, 1,890.46 and 772.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,370.04 : 1,890.46 = 772.46 : x
2. Step 2: Convert to fraction form
   1,370.04/1,890.46 = 772.46/x
3. Step 3: Cross multiply
   1,370.04x = 1,890.46 × 772.46
4. Step 4: Simplify right side
   1,370.04x = 1,460,304.73
5. Step 5: Solve for x
   x = 1,460,304.73/1,370.04
6. Step 6: Final answer
   x = 1,065.88