Finding the Fourth Proportional to 2,670.69, 3,686.25 and 1,551.99

Step by Step Solution

1. Step 1: Write the proportion equation
   2,670.69 : 3,686.25 = 1,551.99 : x
2. Step 2: Convert to fraction form
   2,670.69/3,686.25 = 1,551.99/x
3. Step 3: Cross multiply
   2,670.69x = 3,686.25 × 1,551.99
4. Step 4: Simplify right side
   2,670.69x = 5,721,004.71
5. Step 5: Solve for x
   x = 5,721,004.71/2,670.69
6. Step 6: Final answer
   x = 2,142.15