Finding the Fourth Proportional to 1,422.66, 1,962.08 and 925.06

Step by Step Solution

1. Step 1: Write the proportion equation
   1,422.66 : 1,962.08 = 925.06 : x
2. Step 2: Convert to fraction form
   1,422.66/1,962.08 = 925.06/x
3. Step 3: Cross multiply
   1,422.66x = 1,962.08 × 925.06
4. Step 4: Simplify right side
   1,422.66x = 1,815,041.72
5. Step 5: Solve for x
   x = 1,815,041.72/1,422.66
6. Step 6: Final answer
   x = 1,275.81