Finding the Fourth Proportional to 3,812.01, 5,716.72 and 1,278.59

Step by Step Solution

1. Step 1: Write the proportion equation
   3,812.01 : 5,716.72 = 1,278.59 : x
2. Step 2: Convert to fraction form
   3,812.01/5,716.72 = 1,278.59/x
3. Step 3: Cross multiply
   3,812.01x = 5,716.72 × 1,278.59
4. Step 4: Simplify right side
   3,812.01x = 7,309,314.04
5. Step 5: Solve for x
   x = 7,309,314.04/3,812.01
6. Step 6: Final answer
   x = 1,917.45