Finding the Fourth Proportional to 1,836.65, 2,741.52 and 1,578.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,836.65 : 2,741.52 = 1,578.30 : x
2. Step 2: Convert to fraction form
   1,836.65/2,741.52 = 1,578.30/x
3. Step 3: Cross multiply
   1,836.65x = 2,741.52 × 1,578.30
4. Step 4: Simplify right side
   1,836.65x = 4,326,941.02
5. Step 5: Solve for x
   x = 4,326,941.02/1,836.65
6. Step 6: Final answer
   x = 2,355.89