Finding the Fourth Proportional to 1,214,139.87, 1,675,515.42 and 670,276.35

Step by Step Solution

1. Step 1: Write the proportion equation
   1,214,139.87 : 1,675,515.42 = 670,276.35 : x
2. Step 2: Convert to fraction form
   1,214,139.87/1,675,515.42 = 670,276.35/x
3. Step 3: Cross multiply
   1,214,139.87x = 1,675,515.42 × 670,276.35
4. Step 4: Simplify right side
   1,214,139.87x = 1,123,058,360,086.32
5. Step 5: Solve for x
   x = 1,123,058,360,086.32/1,214,139.87
6. Step 6: Final answer
   x = 924,982.69