Finding the Fourth Proportional to 1,445.77, 2,172.22 and 926.00

Step by Step Solution

1. Step 1: Write the proportion equation
   1,445.77 : 2,172.22 = 926.00 : x
2. Step 2: Convert to fraction form
   1,445.77/2,172.22 = 926.00/x
3. Step 3: Cross multiply
   1,445.77x = 2,172.22 × 926.00
4. Step 4: Simplify right side
   1,445.77x = 2,011,464.86
5. Step 5: Solve for x
   x = 2,011,464.86/1,445.77
6. Step 6: Final answer
   x = 1,391.28