Finding the Fourth Proportional to 1,374.86, 1,897.46 and 1,331.79

Step by Step Solution

1. Step 1: Write the proportion equation
   1,374.86 : 1,897.46 = 1,331.79 : x
2. Step 2: Convert to fraction form
   1,374.86/1,897.46 = 1,331.79/x
3. Step 3: Cross multiply
   1,374.86x = 1,897.46 × 1,331.79
4. Step 4: Simplify right side
   1,374.86x = 2,527,011.59
5. Step 5: Solve for x
   x = 2,527,011.59/1,374.86
6. Step 6: Final answer
   x = 1,838.02