Finding the Fourth Proportional to 1,886.62, 2,598.89 and 1,605.95

Step by Step Solution

1. Step 1: Write the proportion equation
   1,886.62 : 2,598.89 = 1,605.95 : x
2. Step 2: Convert to fraction form
   1,886.62/2,598.89 = 1,605.95/x
3. Step 3: Cross multiply
   1,886.62x = 2,598.89 × 1,605.95
4. Step 4: Simplify right side
   1,886.62x = 4,173,685.86
5. Step 5: Solve for x
   x = 4,173,685.86/1,886.62
6. Step 6: Final answer
   x = 2,212.26