Finding the Fourth Proportional to 1,662.55, 2,293.90 and 1,072.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,662.55 : 2,293.90 = 1,072.38 : x
2. Step 2: Convert to fraction form
   1,662.55/2,293.90 = 1,072.38/x
3. Step 3: Cross multiply
   1,662.55x = 2,293.90 × 1,072.38
4. Step 4: Simplify right side
   1,662.55x = 2,459,932.48
5. Step 5: Solve for x
   x = 2,459,932.48/1,662.55
6. Step 6: Final answer
   x = 1,479.61