Finding the Fourth Proportional to 2,140.83, 2,956.10 and 1,581.93

Step by Step Solution

1. Step 1: Write the proportion equation
   2,140.83 : 2,956.10 = 1,581.93 : x
2. Step 2: Convert to fraction form
   2,140.83/2,956.10 = 1,581.93/x
3. Step 3: Cross multiply
   2,140.83x = 2,956.10 × 1,581.93
4. Step 4: Simplify right side
   2,140.83x = 4,676,335.36
5. Step 5: Solve for x
   x = 4,676,335.36/2,140.83
6. Step 6: Final answer
   x = 2,184.36