Finding the Fourth Proportional to 1,485.05, 2,050.60 and 926.45

Step by Step Solution

1. Step 1: Write the proportion equation
   1,485.05 : 2,050.60 = 926.45 : x
2. Step 2: Convert to fraction form
   1,485.05/2,050.60 = 926.45/x
3. Step 3: Cross multiply
   1,485.05x = 2,050.60 × 926.45
4. Step 4: Simplify right side
   1,485.05x = 1,899,786.76
5. Step 5: Solve for x
   x = 1,899,786.76/1,485.05
6. Step 6: Final answer
   x = 1,279.27