Finding the Fourth Proportional to 3,985.38, 5,978.01 and 1,792.56

Step by Step Solution

1. Step 1: Write the proportion equation
   3,985.38 : 5,978.01 = 1,792.56 : x
2. Step 2: Convert to fraction form
   3,985.38/5,978.01 = 1,792.56/x
3. Step 3: Cross multiply
   3,985.38x = 5,978.01 × 1,792.56
4. Step 4: Simplify right side
   3,985.38x = 10,715,941.61
5. Step 5: Solve for x
   x = 10,715,941.61/3,985.38
6. Step 6: Final answer
   x = 2,688.81