Finding the Fourth Proportional to 2,667.63, 4,003.53 and 1,851.63

Step by Step Solution

1. Step 1: Write the proportion equation
   2,667.63 : 4,003.53 = 1,851.63 : x
2. Step 2: Convert to fraction form
   2,667.63/4,003.53 = 1,851.63/x
3. Step 3: Cross multiply
   2,667.63x = 4,003.53 × 1,851.63
4. Step 4: Simplify right side
   2,667.63x = 7,413,056.25
5. Step 5: Solve for x
   x = 7,413,056.25/2,667.63
6. Step 6: Final answer
   x = 2,778.89