Finding the Fourth Proportional to 2,145,178.86, 3,219,123.69 and 1,199,170.14

Step by Step Solution

1. Step 1: Write the proportion equation
   2,145,178.86 : 3,219,123.69 = 1,199,170.14 : x
2. Step 2: Convert to fraction form
   2,145,178.86/3,219,123.69 = 1,199,170.14/x
3. Step 3: Cross multiply
   2,145,178.86x = 3,219,123.69 × 1,199,170.14
4. Step 4: Simplify right side
   2,145,178.86x = 3,860,277,006,014.62
5. Step 5: Solve for x
   x = 3,860,277,006,014.62/2,145,178.86
6. Step 6: Final answer
   x = 1,799,512.89