Finding the Fourth Proportional to 1,222,391.72, 1,833,962.98 and 583,510.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,222,391.72 : 1,833,962.98 = 583,510.72 : x
2. Step 2: Convert to fraction form
   1,222,391.72/1,833,962.98 = 583,510.72/x
3. Step 3: Cross multiply
   1,222,391.72x = 1,833,962.98 × 583,510.72
4. Step 4: Simplify right side
   1,222,391.72x = 1,070,137,058,913.15
5. Step 5: Solve for x
   x = 1,070,137,058,913.15/1,222,391.72
6. Step 6: Final answer
   x = 875,445.28