Finding the Fourth Proportional to 2,145,823.86, 3,219,561.18 and 946,899.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,145,823.86 : 3,219,561.18 = 946,899.12 : x
2. Step 2: Convert to fraction form
   2,145,823.86/3,219,561.18 = 946,899.12/x
3. Step 3: Cross multiply
   2,145,823.86x = 3,219,561.18 × 946,899.12
4. Step 4: Simplify right side
   2,145,823.86x = 3,048,599,648,128.16
5. Step 5: Solve for x
   x = 3,048,599,648,128.16/2,145,823.86
6. Step 6: Final answer
   x = 1,420,712.90