Finding the Fourth Proportional to 2,124.70, 2,931.72 and 1,327.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,124.70 : 2,931.72 = 1,327.89 : x
2. Step 2: Convert to fraction form
   2,124.70/2,931.72 = 1,327.89/x
3. Step 3: Cross multiply
   2,124.70x = 2,931.72 × 1,327.89
4. Step 4: Simplify right side
   2,124.70x = 3,893,001.67
5. Step 5: Solve for x
   x = 3,893,001.67/2,124.70
6. Step 6: Final answer
   x = 1,832.26