Finding the Fourth Proportional to 2,140.73, 3,213.12 and 1,410.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,140.73 : 3,213.12 = 1,410.78 : x
2. Step 2: Convert to fraction form
   2,140.73/3,213.12 = 1,410.78/x
3. Step 3: Cross multiply
   2,140.73x = 3,213.12 × 1,410.78
4. Step 4: Simplify right side
   2,140.73x = 4,533,005.43
5. Step 5: Solve for x
   x = 4,533,005.43/2,140.73
6. Step 6: Final answer
   x = 2,117.51