Finding the Fourth Proportional to 1,422.50, 1,961.81 and 924.95

Step by Step Solution

1. Step 1: Write the proportion equation
   1,422.50 : 1,961.81 = 924.95 : x
2. Step 2: Convert to fraction form
   1,422.50/1,961.81 = 924.95/x
3. Step 3: Cross multiply
   1,422.50x = 1,961.81 × 924.95
4. Step 4: Simplify right side
   1,422.50x = 1,814,576.16
5. Step 5: Solve for x
   x = 1,814,576.16/1,422.50
6. Step 6: Final answer
   x = 1,275.63