Finding the Fourth Proportional to 1,416.37, 1,954.69 and 818.98

Step by Step Solution

1. Step 1: Write the proportion equation
   1,416.37 : 1,954.69 = 818.98 : x
2. Step 2: Convert to fraction form
   1,416.37/1,954.69 = 818.98/x
3. Step 3: Cross multiply
   1,416.37x = 1,954.69 × 818.98
4. Step 4: Simplify right side
   1,416.37x = 1,600,852.02
5. Step 5: Solve for x
   x = 1,600,852.02/1,416.37
6. Step 6: Final answer
   x = 1,130.25