Finding the Fourth Proportional to 1,415.99, 1,954.03 and 826.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,415.99 : 1,954.03 = 826.48 : x
2. Step 2: Convert to fraction form
   1,415.99/1,954.03 = 826.48/x
3. Step 3: Cross multiply
   1,415.99x = 1,954.03 × 826.48
4. Step 4: Simplify right side
   1,415.99x = 1,614,966.71
5. Step 5: Solve for x
   x = 1,614,966.71/1,415.99
6. Step 6: Final answer
   x = 1,140.52