Finding the Fourth Proportional to 1,422.01, 1,961.69 and 924.81

Step by Step Solution

1. Step 1: Write the proportion equation
   1,422.01 : 1,961.69 = 924.81 : x
2. Step 2: Convert to fraction form
   1,422.01/1,961.69 = 924.81/x
3. Step 3: Cross multiply
   1,422.01x = 1,961.69 × 924.81
4. Step 4: Simplify right side
   1,422.01x = 1,814,190.53
5. Step 5: Solve for x
   x = 1,814,190.53/1,422.01
6. Step 6: Final answer
   x = 1,275.79