Finding the Fourth Proportional to 1,581,718.91, 2,372,569.72 and 383,638.91

Step by Step Solution

1. Step 1: Write the proportion equation
   1,581,718.91 : 2,372,569.72 = 383,638.91 : x
2. Step 2: Convert to fraction form
   1,581,718.91/2,372,569.72 = 383,638.91/x
3. Step 3: Cross multiply
   1,581,718.91x = 2,372,569.72 × 383,638.91
4. Step 4: Simplify right side
   1,581,718.91x = 910,210,061,279.81
5. Step 5: Solve for x
   x = 910,210,061,279.81/1,581,718.91
6. Step 6: Final answer
   x = 575,456.27