Finding the Fourth Proportional to 1,918.59, 2,647.02 and 1,162.09

Step by Step Solution

1. Step 1: Write the proportion equation
   1,918.59 : 2,647.02 = 1,162.09 : x
2. Step 2: Convert to fraction form
   1,918.59/2,647.02 = 1,162.09/x
3. Step 3: Cross multiply
   1,918.59x = 2,647.02 × 1,162.09
4. Step 4: Simplify right side
   1,918.59x = 3,076,075.47
5. Step 5: Solve for x
   x = 3,076,075.47/1,918.59
6. Step 6: Final answer
   x = 1,603.30