Finding the Fourth Proportional to 1,152,856.56, 1,590,968.88 and 723,154.80

Step by Step Solution

1. Step 1: Write the proportion equation
   1,152,856.56 : 1,590,968.88 = 723,154.80 : x
2. Step 2: Convert to fraction form
   1,152,856.56/1,590,968.88 = 723,154.80/x
3. Step 3: Cross multiply
   1,152,856.56x = 1,590,968.88 × 723,154.80
4. Step 4: Simplify right side
   1,152,856.56x = 1,150,516,782,222.62
5. Step 5: Solve for x
   x = 1,150,516,782,222.62/1,152,856.56
6. Step 6: Final answer
   x = 997,970.45