Finding the Fourth Proportional to 1,215,710.04, 1,823,880.01 and 646,622.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,215,710.04 : 1,823,880.01 = 646,622.72 : x
2. Step 2: Convert to fraction form
   1,215,710.04/1,823,880.01 = 646,622.72/x
3. Step 3: Cross multiply
   1,215,710.04x = 1,823,880.01 × 646,622.72
4. Step 4: Simplify right side
   1,215,710.04x = 1,179,362,253,019.83
5. Step 5: Solve for x
   x = 1,179,362,253,019.83/1,215,710.04
6. Step 6: Final answer
   x = 970,101.60