Finding the Fourth Proportional to 3,607.98, 5,407.25 and 1,851.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,607.98 : 5,407.25 = 1,851.50 : x
2. Step 2: Convert to fraction form
   3,607.98/5,407.25 = 1,851.50/x
3. Step 3: Cross multiply
   3,607.98x = 5,407.25 × 1,851.50
4. Step 4: Simplify right side
   3,607.98x = 10,011,487.08
5. Step 5: Solve for x
   x = 10,011,487.08/3,607.98
6. Step 6: Final answer
   x = 2,774.82