Finding the Fourth Proportional to 1,680.46, 2,521.52 and 1,190.03

Step by Step Solution

1. Step 1: Write the proportion equation
   1,680.46 : 2,521.52 = 1,190.03 : x
2. Step 2: Convert to fraction form
   1,680.46/2,521.52 = 1,190.03/x
3. Step 3: Cross multiply
   1,680.46x = 2,521.52 × 1,190.03
4. Step 4: Simplify right side
   1,680.46x = 3,000,675.10
5. Step 5: Solve for x
   x = 3,000,675.10/1,680.46
6. Step 6: Final answer
   x = 1,785.63