Finding the Fourth Proportional to 1,368.12, 1,887.93 and 808.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,368.12 : 1,887.93 = 808.46 : x
2. Step 2: Convert to fraction form
   1,368.12/1,887.93 = 808.46/x
3. Step 3: Cross multiply
   1,368.12x = 1,887.93 × 808.46
4. Step 4: Simplify right side
   1,368.12x = 1,526,315.89
5. Step 5: Solve for x
   x = 1,526,315.89/1,368.12
6. Step 6: Final answer
   x = 1,115.63