Finding the Fourth Proportional to 1,207,300.15, 1,809,601.57 and 523,397.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,207,300.15 : 1,809,601.57 = 523,397.46 : x
2. Step 2: Convert to fraction form
   1,207,300.15/1,809,601.57 = 523,397.46/x
3. Step 3: Cross multiply
   1,207,300.15x = 1,809,601.57 × 523,397.46
4. Step 4: Simplify right side
   1,207,300.15x = 947,140,865,350.01
5. Step 5: Solve for x
   x = 947,140,865,350.01/1,207,300.15
6. Step 6: Final answer
   x = 784,511.51