Finding the Fourth Proportional to 1,351.17, 1,860.89 and 1,263.33

Step by Step Solution

1. Step 1: Write the proportion equation
   1,351.17 : 1,860.89 = 1,263.33 : x
2. Step 2: Convert to fraction form
   1,351.17/1,860.89 = 1,263.33/x
3. Step 3: Cross multiply
   1,351.17x = 1,860.89 × 1,263.33
4. Step 4: Simplify right side
   1,351.17x = 2,350,911.85
5. Step 5: Solve for x
   x = 2,350,911.85/1,351.17
6. Step 6: Final answer
   x = 1,739.91