Finding the Fourth Proportional to 1,833.60, 2,530.32 and 1,047.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,833.60 : 2,530.32 = 1,047.72 : x
2. Step 2: Convert to fraction form
   1,833.60/2,530.32 = 1,047.72/x
3. Step 3: Cross multiply
   1,833.60x = 2,530.32 × 1,047.72
4. Step 4: Simplify right side
   1,833.60x = 2,651,066.87
5. Step 5: Solve for x
   x = 2,651,066.87/1,833.60
6. Step 6: Final answer
   x = 1,445.83