Finding the Fourth Proportional to 2,670.78, 3,685.42 and 1,551.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,670.78 : 3,685.42 = 1,551.69 : x
2. Step 2: Convert to fraction form
   2,670.78/3,685.42 = 1,551.69/x
3. Step 3: Cross multiply
   2,670.78x = 3,685.42 × 1,551.69
4. Step 4: Simplify right side
   2,670.78x = 5,718,629.36
5. Step 5: Solve for x
   x = 5,718,629.36/2,670.78
6. Step 6: Final answer
   x = 2,141.18