Finding the Fourth Proportional to 1,872.09, 2,804.52 and 1,047.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,872.09 : 2,804.52 = 1,047.86 : x
2. Step 2: Convert to fraction form
   1,872.09/2,804.52 = 1,047.86/x
3. Step 3: Cross multiply
   1,872.09x = 2,804.52 × 1,047.86
4. Step 4: Simplify right side
   1,872.09x = 2,938,730.30
5. Step 5: Solve for x
   x = 2,938,730.30/1,872.09
6. Step 6: Final answer
   x = 1,569.76