Finding the Fourth Proportional to 1,783.72, 2,674.70 and 1,053.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,783.72 : 2,674.70 = 1,053.10 : x
2. Step 2: Convert to fraction form
   1,783.72/2,674.70 = 1,053.10/x
3. Step 3: Cross multiply
   1,783.72x = 2,674.70 × 1,053.10
4. Step 4: Simplify right side
   1,783.72x = 2,816,707.93
5. Step 5: Solve for x
   x = 2,816,707.93/1,783.72
6. Step 6: Final answer
   x = 1,579.12