Finding the Fourth Proportional to 1,605,146.73, 2,215,101.94 and 879,978.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,605,146.73 : 2,215,101.94 = 879,978.89 : x
2. Step 2: Convert to fraction form
   1,605,146.73/2,215,101.94 = 879,978.89/x
3. Step 3: Cross multiply
   1,605,146.73x = 2,215,101.94 × 879,978.89
4. Step 4: Simplify right side
   1,605,146.73x = 1,949,242,937,275.91
5. Step 5: Solve for x
   x = 1,949,242,937,275.91/1,605,146.73
6. Step 6: Final answer
   x = 1,214,370.57