Finding the Fourth Proportional to 700,323.10, 1,050,812.69 and 345,143.37

Step by Step Solution

1. Step 1: Write the proportion equation
   700,323.10 : 1,050,812.69 = 345,143.37 : x
2. Step 2: Convert to fraction form
   700,323.10/1,050,812.69 = 345,143.37/x
3. Step 3: Cross multiply
   700,323.10x = 1,050,812.69 × 345,143.37
4. Step 4: Simplify right side
   700,323.10x = 362,681,033,065.37
5. Step 5: Solve for x
   x = 362,681,033,065.37/700,323.10
6. Step 6: Final answer
   x = 517,876.72