Finding the Fourth Proportional to 1,684.32, 2,513.76 and 1,574.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,684.32 : 2,513.76 = 1,574.88 : x
2. Step 2: Convert to fraction form
   1,684.32/2,513.76 = 1,574.88/x
3. Step 3: Cross multiply
   1,684.32x = 2,513.76 × 1,574.88
4. Step 4: Simplify right side
   1,684.32x = 3,958,870.35
5. Step 5: Solve for x
   x = 3,958,870.35/1,684.32
6. Step 6: Final answer
   x = 2,350.43