Finding the Fourth Proportional to 1,677.23, 2,314.59 and 920.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,677.23 : 2,314.59 = 920.96 : x
2. Step 2: Convert to fraction form
   1,677.23/2,314.59 = 920.96/x
3. Step 3: Cross multiply
   1,677.23x = 2,314.59 × 920.96
4. Step 4: Simplify right side
   1,677.23x = 2,131,637.57
5. Step 5: Solve for x
   x = 2,131,637.57/1,677.23
6. Step 6: Final answer
   x = 1,270.93