Finding the Fourth Proportional to 1,255.68, 1,729.89 and 882

Step by Step Solution

1. Step 1: Write the proportion equation
   1,255.68 : 1,729.89 = 882 : x
2. Step 2: Convert to fraction form
   1,255.68/1,729.89 = 882/x
3. Step 3: Cross multiply
   1,255.68x = 1,729.89 × 882
4. Step 4: Simplify right side
   1,255.68x = 1,525,762.98
5. Step 5: Solve for x
   x = 1,525,762.98/1,255.68
6. Step 6: Final answer
   x = 1,215.09