Finding the Fourth Proportional to 1,365.15, 1,887.71 and 1,084.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,365.15 : 1,887.71 = 1,084.89 : x
2. Step 2: Convert to fraction form
   1,365.15/1,887.71 = 1,084.89/x
3. Step 3: Cross multiply
   1,365.15x = 1,887.71 × 1,084.89
4. Step 4: Simplify right side
   1,365.15x = 2,047,959.36
5. Step 5: Solve for x
   x = 2,047,959.36/1,365.15
6. Step 6: Final answer
   x = 1,500.17