Finding the Fourth Proportional to 1,812,300.75, 2,718,713.57 and 550,129.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,812,300.75 : 2,718,713.57 = 550,129.59 : x
2. Step 2: Convert to fraction form
   1,812,300.75/2,718,713.57 = 550,129.59/x
3. Step 3: Cross multiply
   1,812,300.75x = 2,718,713.57 × 550,129.59
4. Step 4: Simplify right side
   1,812,300.75x = 1,495,644,778,840.89
5. Step 5: Solve for x
   x = 1,495,644,778,840.89/1,812,300.75
6. Step 6: Final answer
   x = 825,274.05