Finding the Fourth Proportional to 1,676.48, 2,312.52 and 1,109.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,676.48 : 2,312.52 = 1,109.31 : x
2. Step 2: Convert to fraction form
   1,676.48/2,312.52 = 1,109.31/x
3. Step 3: Cross multiply
   1,676.48x = 2,312.52 × 1,109.31
4. Step 4: Simplify right side
   1,676.48x = 2,565,296.01
5. Step 5: Solve for x
   x = 2,565,296.01/1,676.48
6. Step 6: Final answer
   x = 1,530.17