Finding the Fourth Proportional to 1,326,638.72, 1,830,763.20 and 723,026.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,326,638.72 : 1,830,763.20 = 723,026.72 : x
2. Step 2: Convert to fraction form
   1,326,638.72/1,830,763.20 = 723,026.72/x
3. Step 3: Cross multiply
   1,326,638.72x = 1,830,763.20 × 723,026.72
4. Step 4: Simplify right side
   1,326,638.72x = 1,323,690,711,592.70
5. Step 5: Solve for x
   x = 1,323,690,711,592.70/1,326,638.72
6. Step 6: Final answer
   x = 997,777.84