Finding the Fourth Proportional to 2,574.72, 3,554.04 and 1,690.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,574.72 : 3,554.04 = 1,690.72 : x
2. Step 2: Convert to fraction form
   2,574.72/3,554.04 = 1,690.72/x
3. Step 3: Cross multiply
   2,574.72x = 3,554.04 × 1,690.72
4. Step 4: Simplify right side
   2,574.72x = 6,008,886.51
5. Step 5: Solve for x
   x = 6,008,886.51/2,574.72
6. Step 6: Final answer
   x = 2,333.80