Finding the Fourth Proportional to 1,525.86, 2,105.01 and 928.26

Step by Step Solution

1. Step 1: Write the proportion equation
   1,525.86 : 2,105.01 = 928.26 : x
2. Step 2: Convert to fraction form
   1,525.86/2,105.01 = 928.26/x
3. Step 3: Cross multiply
   1,525.86x = 2,105.01 × 928.26
4. Step 4: Simplify right side
   1,525.86x = 1,953,996.58
5. Step 5: Solve for x
   x = 1,953,996.58/1,525.86
6. Step 6: Final answer
   x = 1,280.59