Finding the Fourth Proportional to 1,918.02, 2,651.59 and 1,900.49

Step by Step Solution

1. Step 1: Write the proportion equation
   1,918.02 : 2,651.59 = 1,900.49 : x
2. Step 2: Convert to fraction form
   1,918.02/2,651.59 = 1,900.49/x
3. Step 3: Cross multiply
   1,918.02x = 2,651.59 × 1,900.49
4. Step 4: Simplify right side
   1,918.02x = 5,039,309.40
5. Step 5: Solve for x
   x = 5,039,309.40/1,918.02
6. Step 6: Final answer
   x = 2,627.34