Finding the Fourth Proportional to 1,690.59, 2,316.06 and 1,627.41

Step by Step Solution

1. Step 1: Write the proportion equation
   1,690.59 : 2,316.06 = 1,627.41 : x
2. Step 2: Convert to fraction form
   1,690.59/2,316.06 = 1,627.41/x
3. Step 3: Cross multiply
   1,690.59x = 2,316.06 × 1,627.41
4. Step 4: Simplify right side
   1,690.59x = 3,769,179.20
5. Step 5: Solve for x
   x = 3,769,179.20/1,690.59
6. Step 6: Final answer
   x = 2,229.51