Finding the Fourth Proportional to 2,478,906.18, 3,710,631.87 and 1,908,806.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,478,906.18 : 3,710,631.87 = 1,908,806.31 : x
2. Step 2: Convert to fraction form
   2,478,906.18/3,710,631.87 = 1,908,806.31/x
3. Step 3: Cross multiply
   2,478,906.18x = 3,710,631.87 × 1,908,806.31
4. Step 4: Simplify right side
   2,478,906.18x = 7,082,877,527,543.10
5. Step 5: Solve for x
   x = 7,082,877,527,543.10/2,478,906.18
6. Step 6: Final answer
   x = 2,857,259.22