Finding the Fourth Proportional to 2,151.18, 2,968.71 and 1,395.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,151.18 : 2,968.71 = 1,395.12 : x
2. Step 2: Convert to fraction form
   2,151.18/2,968.71 = 1,395.12/x
3. Step 3: Cross multiply
   2,151.18x = 2,968.71 × 1,395.12
4. Step 4: Simplify right side
   2,151.18x = 4,141,706.70
5. Step 5: Solve for x
   x = 4,141,706.70/2,151.18
6. Step 6: Final answer
   x = 1,925.32