Finding the Fourth Proportional to 2,118.83, 2,920.74 and 1,487.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,118.83 : 2,920.74 = 1,487.59 : x
2. Step 2: Convert to fraction form
   2,118.83/2,920.74 = 1,487.59/x
3. Step 3: Cross multiply
   2,118.83x = 2,920.74 × 1,487.59
4. Step 4: Simplify right side
   2,118.83x = 4,344,861.89
5. Step 5: Solve for x
   x = 4,344,861.89/2,118.83
6. Step 6: Final answer
   x = 2,050.59