Finding the Fourth Proportional to 2,913,196.16, 4,369,794.24 and 918,807.68

Step by Step Solution

1. Step 1: Write the proportion equation
   2,913,196.16 : 4,369,794.24 = 918,807.68 : x
2. Step 2: Convert to fraction form
   2,913,196.16/4,369,794.24 = 918,807.68/x
3. Step 3: Cross multiply
   2,913,196.16x = 4,369,794.24 × 918,807.68
4. Step 4: Simplify right side
   2,913,196.16x = 4,015,000,507,731.76
5. Step 5: Solve for x
   x = 4,015,000,507,731.76/2,913,196.16
6. Step 6: Final answer
   x = 1,378,211.52