Finding the Fourth Proportional to 1,690.71, 2,334.79 and 1,598.68

Step by Step Solution

1. Step 1: Write the proportion equation
   1,690.71 : 2,334.79 = 1,598.68 : x
2. Step 2: Convert to fraction form
   1,690.71/2,334.79 = 1,598.68/x
3. Step 3: Cross multiply
   1,690.71x = 2,334.79 × 1,598.68
4. Step 4: Simplify right side
   1,690.71x = 3,732,582.08
5. Step 5: Solve for x
   x = 3,732,582.08/1,690.71
6. Step 6: Final answer
   x = 2,207.70