Finding the Fourth Proportional to 2,088,072, 3,132,108 and 512,136

Step by Step Solution

1. Step 1: Write the proportion equation
   2,088,072 : 3,132,108 = 512,136 : x
2. Step 2: Convert to fraction form
   2,088,072/3,132,108 = 512,136/x
3. Step 3: Cross multiply
   2,088,072x = 3,132,108 × 512,136
4. Step 4: Simplify right side
   2,088,072x = 1,604,065,262,688
5. Step 5: Solve for x
   x = 1,604,065,262,688/2,088,072
6. Step 6: Final answer
   x = 768,204