Finding the Fourth Proportional to 1,672.85, 2,308.52 and 1,001.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,672.85 : 2,308.52 = 1,001.12 : x
2. Step 2: Convert to fraction form
   1,672.85/2,308.52 = 1,001.12/x
3. Step 3: Cross multiply
   1,672.85x = 2,308.52 × 1,001.12
4. Step 4: Simplify right side
   1,672.85x = 2,311,096.50
5. Step 5: Solve for x
   x = 2,311,096.50/1,672.85
6. Step 6: Final answer
   x = 1,381.53