Finding the Fourth Proportional to 673,300.90, 1,010,502.15 and 668,052.10

Step by Step Solution

1. Step 1: Write the proportion equation
   673,300.90 : 1,010,502.15 = 668,052.10 : x
2. Step 2: Convert to fraction form
   673,300.90/1,010,502.15 = 668,052.10/x
3. Step 3: Cross multiply
   673,300.90x = 1,010,502.15 × 668,052.10
4. Step 4: Simplify right side
   673,300.90x = 675,068,083,362.02
5. Step 5: Solve for x
   x = 675,068,083,362.02/673,300.90
6. Step 6: Final answer
   x = 1,002,624.66