Finding the Fourth Proportional to 2,533.24, 3,789.87 and 1,918.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,533.24 : 3,789.87 = 1,918.72 : x
2. Step 2: Convert to fraction form
   2,533.24/3,789.87 = 1,918.72/x
3. Step 3: Cross multiply
   2,533.24x = 3,789.87 × 1,918.72
4. Step 4: Simplify right side
   2,533.24x = 7,271,699.37
5. Step 5: Solve for x
   x = 7,271,699.37/2,533.24
6. Step 6: Final answer
   x = 2,870.51