Finding the Fourth Proportional to 1,200,157.42, 1,656,164.51 and 684,023.02

Step by Step Solution

1. Step 1: Write the proportion equation
   1,200,157.42 : 1,656,164.51 = 684,023.02 : x
2. Step 2: Convert to fraction form
   1,200,157.42/1,656,164.51 = 684,023.02/x
3. Step 3: Cross multiply
   1,200,157.42x = 1,656,164.51 × 684,023.02
4. Step 4: Simplify right side
   1,200,157.42x = 1,132,854,649,747.02
5. Step 5: Solve for x
   x = 1,132,854,649,747.02/1,200,157.42
6. Step 6: Final answer
   x = 943,921.71