Finding the Fourth Proportional to 1,648,056.35, 2,470,116.23 and 688,510.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,648,056.35 : 2,470,116.23 = 688,510.10 : x
2. Step 2: Convert to fraction form
   1,648,056.35/2,470,116.23 = 688,510.10/x
3. Step 3: Cross multiply
   1,648,056.35x = 2,470,116.23 × 688,510.10
4. Step 4: Simplify right side
   1,648,056.35x = 1,700,699,969,086.37
5. Step 5: Solve for x
   x = 1,700,699,969,086.37/1,648,056.35
6. Step 6: Final answer
   x = 1,031,942.85