Finding the Fourth Proportional to 1,610,562.72, 2,414,072.60 and 663,416.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,610,562.72 : 2,414,072.60 = 663,416.72 : x
2. Step 2: Convert to fraction form
   1,610,562.72/2,414,072.60 = 663,416.72/x
3. Step 3: Cross multiply
   1,610,562.72x = 2,414,072.60 × 663,416.72
4. Step 4: Simplify right side
   1,610,562.72x = 1,601,536,126,133.87
5. Step 5: Solve for x
   x = 1,601,536,126,133.87/1,610,562.72
6. Step 6: Final answer
   x = 994,395.38