Finding the Fourth Proportional to 1,669.47, 2,303.24 and 1,047.39

Step by Step Solution

1. Step 1: Write the proportion equation
   1,669.47 : 2,303.24 = 1,047.39 : x
2. Step 2: Convert to fraction form
   1,669.47/2,303.24 = 1,047.39/x
3. Step 3: Cross multiply
   1,669.47x = 2,303.24 × 1,047.39
4. Step 4: Simplify right side
   1,669.47x = 2,412,385.31
5. Step 5: Solve for x
   x = 2,412,385.31/1,669.47
6. Step 6: Final answer
   x = 1,445.00