Finding the Fourth Proportional to 2,100.89, 3,153.38 and 1,551.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,100.89 : 3,153.38 = 1,551.40 : x
2. Step 2: Convert to fraction form
   2,100.89/3,153.38 = 1,551.40/x
3. Step 3: Cross multiply
   2,100.89x = 3,153.38 × 1,551.40
4. Step 4: Simplify right side
   2,100.89x = 4,892,164.56
5. Step 5: Solve for x
   x = 4,892,164.56/2,100.89
6. Step 6: Final answer
   x = 2,328.62