Finding the Fourth Proportional to 1,851.03, 2,555.01 and 1,291.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,851.03 : 2,555.01 = 1,291.50 : x
2. Step 2: Convert to fraction form
   1,851.03/2,555.01 = 1,291.50/x
3. Step 3: Cross multiply
   1,851.03x = 2,555.01 × 1,291.50
4. Step 4: Simplify right side
   1,851.03x = 3,299,795.42
5. Step 5: Solve for x
   x = 3,299,795.42/1,851.03
6. Step 6: Final answer
   x = 1,782.68