Finding the Fourth Proportional to 1,152,859.56, 1,590,973.02 and 723,157.80

Step by Step Solution

1. Step 1: Write the proportion equation
   1,152,859.56 : 1,590,973.02 = 723,157.80 : x
2. Step 2: Convert to fraction form
   1,152,859.56/1,590,973.02 = 723,157.80/x
3. Step 3: Cross multiply
   1,152,859.56x = 1,590,973.02 × 723,157.80
4. Step 4: Simplify right side
   1,152,859.56x = 1,150,524,549,002.56
5. Step 5: Solve for x
   x = 1,150,524,549,002.56/1,152,859.56
6. Step 6: Final answer
   x = 997,974.59