Finding the Fourth Proportional to 2,674.68, 3,690.72 and 1,555.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,674.68 : 3,690.72 = 1,555.98 : x
2. Step 2: Convert to fraction form
   2,674.68/3,690.72 = 1,555.98/x
3. Step 3: Cross multiply
   2,674.68x = 3,690.72 × 1,555.98
4. Step 4: Simplify right side
   2,674.68x = 5,742,686.51
5. Step 5: Solve for x
   x = 5,742,686.51/2,674.68
6. Step 6: Final answer
   x = 2,147.06