Finding the Fourth Proportional to 1,690.70, 2,335.52 and 1,602.03

Step by Step Solution

1. Step 1: Write the proportion equation
   1,690.70 : 2,335.52 = 1,602.03 : x
2. Step 2: Convert to fraction form
   1,690.70/2,335.52 = 1,602.03/x
3. Step 3: Cross multiply
   1,690.70x = 2,335.52 × 1,602.03
4. Step 4: Simplify right side
   1,690.70x = 3,741,570.48
5. Step 5: Solve for x
   x = 3,741,570.48/1,690.70
6. Step 6: Final answer
   x = 2,213.03