Finding the Fourth Proportional to 1,444.77, 2,170.72 and 925.00

Step by Step Solution

1. Step 1: Write the proportion equation
   1,444.77 : 2,170.72 = 925.00 : x
2. Step 2: Convert to fraction form
   1,444.77/2,170.72 = 925.00/x
3. Step 3: Cross multiply
   1,444.77x = 2,170.72 × 925.00
4. Step 4: Simplify right side
   1,444.77x = 2,007,902.83
5. Step 5: Solve for x
   x = 2,007,902.83/1,444.77
6. Step 6: Final answer
   x = 1,389.78