Finding the Fourth Proportional to 918,152.19, 1,267,024.59 and 510,243.57

Step by Step Solution

1. Step 1: Write the proportion equation
   918,152.19 : 1,267,024.59 = 510,243.57 : x
2. Step 2: Convert to fraction form
   918,152.19/1,267,024.59 = 510,243.57/x
3. Step 3: Cross multiply
   918,152.19x = 1,267,024.59 × 510,243.57
4. Step 4: Simplify right side
   918,152.19x = 646,491,150,079.39
5. Step 5: Solve for x
   x = 646,491,150,079.39/918,152.19
6. Step 6: Final answer
   x = 704,121.99