Finding the Fourth Proportional to 2,153,323.30, 3,229,802.70 and 657,415.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,153,323.30 : 3,229,802.70 = 657,415.30 : x
2. Step 2: Convert to fraction form
   2,153,323.30/3,229,802.70 = 657,415.30/x
3. Step 3: Cross multiply
   2,153,323.30x = 3,229,802.70 × 657,415.30
4. Step 4: Simplify right side
   2,153,323.30x = 2,123,321,710,961.31
5. Step 5: Solve for x
   x = 2,123,321,710,961.31/2,153,323.30
6. Step 6: Final answer
   x = 986,067.31