Finding the Fourth Proportional to 1,052,459,065.12, 1,452,059,616.56 and 612,340,886.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,052,459,065.12 : 1,452,059,616.56 = 612,340,886.56 : x
2. Step 2: Convert to fraction form
   1,052,459,065.12/1,452,059,616.56 = 612,340,886.56/x
3. Step 3: Cross multiply
   1,052,459,065.12x = 1,452,059,616.56 × 612,340,886.56
4. Step 4: Simplify right side
   1,052,459,065.12x = 889,155,472,942,323,968
5. Step 5: Solve for x
   x = 889,155,472,942,323,968/1,052,459,065.12
6. Step 6: Final answer
   x = 844,836,157.92