Finding the Fourth Proportional to 2,167, 2,990.52 and 1,235.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,167 : 2,990.52 = 1,235.50 : x
2. Step 2: Convert to fraction form
   2,167/2,990.52 = 1,235.50/x
3. Step 3: Cross multiply
   2,167x = 2,990.52 × 1,235.50
4. Step 4: Simplify right side
   2,167x = 3,694,787.46
5. Step 5: Solve for x
   x = 3,694,787.46/2,167
6. Step 6: Final answer
   x = 1,705.02