Finding the Fourth Proportional to 2,445.86, 3,667.85 and 1,931.92

Step by Step Solution

1. Step 1: Write the proportion equation
   2,445.86 : 3,667.85 = 1,931.92 : x
2. Step 2: Convert to fraction form
   2,445.86/3,667.85 = 1,931.92/x
3. Step 3: Cross multiply
   2,445.86x = 3,667.85 × 1,931.92
4. Step 4: Simplify right side
   2,445.86x = 7,085,981.19
5. Step 5: Solve for x
   x = 7,085,981.19/2,445.86
6. Step 6: Final answer
   x = 2,897.13