Finding the Fourth Proportional to 1,410.60, 1,945.94 and 820.92

Step by Step Solution

1. Step 1: Write the proportion equation
   1,410.60 : 1,945.94 = 820.92 : x
2. Step 2: Convert to fraction form
   1,410.60/1,945.94 = 820.92/x
3. Step 3: Cross multiply
   1,410.60x = 1,945.94 × 820.92
4. Step 4: Simplify right side
   1,410.60x = 1,597,461.06
5. Step 5: Solve for x
   x = 1,597,461.06/1,410.60
6. Step 6: Final answer
   x = 1,132.47