Finding the Fourth Proportional to 1,345,127.84, 1,856,794.56 and 985,408.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,345,127.84 : 1,856,794.56 = 985,408.72 : x
2. Step 2: Convert to fraction form
   1,345,127.84/1,856,794.56 = 985,408.72/x
3. Step 3: Cross multiply
   1,345,127.84x = 1,856,794.56 × 985,408.72
4. Step 4: Simplify right side
   1,345,127.84x = 1,829,701,550,672.56
5. Step 5: Solve for x
   x = 1,829,701,550,672.56/1,345,127.84
6. Step 6: Final answer
   x = 1,360,243.61