Finding the Fourth Proportional to 1,340.01, 1,847.88 and 808.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,340.01 : 1,847.88 = 808.72 : x
2. Step 2: Convert to fraction form
   1,340.01/1,847.88 = 808.72/x
3. Step 3: Cross multiply
   1,340.01x = 1,847.88 × 808.72
4. Step 4: Simplify right side
   1,340.01x = 1,494,412.89
5. Step 5: Solve for x
   x = 1,494,412.89/1,340.01
6. Step 6: Final answer
   x = 1,115.23