Finding the Fourth Proportional to 1,551.45, 2,328.40 and 1,369.21

Step by Step Solution

1. Step 1: Write the proportion equation
   1,551.45 : 2,328.40 = 1,369.21 : x
2. Step 2: Convert to fraction form
   1,551.45/2,328.40 = 1,369.21/x
3. Step 3: Cross multiply
   1,551.45x = 2,328.40 × 1,369.21
4. Step 4: Simplify right side
   1,551.45x = 3,188,061.72
5. Step 5: Solve for x
   x = 3,188,061.72/1,551.45
6. Step 6: Final answer
   x = 2,054.89