Finding the Fourth Proportional to 1,259.42, 1,737.25 and 761.81

Step by Step Solution

1. Step 1: Write the proportion equation
   1,259.42 : 1,737.25 = 761.81 : x
2. Step 2: Convert to fraction form
   1,259.42/1,737.25 = 761.81/x
3. Step 3: Cross multiply
   1,259.42x = 1,737.25 × 761.81
4. Step 4: Simplify right side
   1,259.42x = 1,323,443.83
5. Step 5: Solve for x
   x = 1,323,443.83/1,259.42
6. Step 6: Final answer
   x = 1,050.84