Finding the Fourth Proportional to 1,948.94, 2,689.42 and 1,152.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,948.94 : 2,689.42 = 1,152.30 : x
2. Step 2: Convert to fraction form
   1,948.94/2,689.42 = 1,152.30/x
3. Step 3: Cross multiply
   1,948.94x = 2,689.42 × 1,152.30
4. Step 4: Simplify right side
   1,948.94x = 3,099,018.67
5. Step 5: Solve for x
   x = 3,099,018.67/1,948.94
6. Step 6: Final answer
   x = 1,590.10