Finding the Fourth Proportional to 1,662,018.72, 2,492,141.76 and 862,495.20

Step by Step Solution

1. Step 1: Write the proportion equation
   1,662,018.72 : 2,492,141.76 = 862,495.20 : x
2. Step 2: Convert to fraction form
   1,662,018.72/2,492,141.76 = 862,495.20/x
3. Step 3: Cross multiply
   1,662,018.72x = 2,492,141.76 × 862,495.20
4. Step 4: Simplify right side
   1,662,018.72x = 2,149,460,305,719.55
5. Step 5: Solve for x
   x = 2,149,460,305,719.55/1,662,018.72
6. Step 6: Final answer
   x = 1,293,282.85