Finding the Fourth Proportional to 1,373.96, 1,895.96 and 776.51

Step by Step Solution

1. Step 1: Write the proportion equation
   1,373.96 : 1,895.96 = 776.51 : x
2. Step 2: Convert to fraction form
   1,373.96/1,895.96 = 776.51/x
3. Step 3: Cross multiply
   1,373.96x = 1,895.96 × 776.51
4. Step 4: Simplify right side
   1,373.96x = 1,472,218.54
5. Step 5: Solve for x
   x = 1,472,218.54/1,373.96
6. Step 6: Final answer
   x = 1,071.51