Finding the Fourth Proportional to 2,151.90, 2,970.81 and 1,523.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,151.90 : 2,970.81 = 1,523.34 : x
2. Step 2: Convert to fraction form
   2,151.90/2,970.81 = 1,523.34/x
3. Step 3: Cross multiply
   2,151.90x = 2,970.81 × 1,523.34
4. Step 4: Simplify right side
   2,151.90x = 4,525,553.71
5. Step 5: Solve for x
   x = 4,525,553.71/2,151.90
6. Step 6: Final answer
   x = 2,103.05