Finding the Fourth Proportional to 1,387,603.72, 1,915,483.50 and 843,914.04

Step by Step Solution

1. Step 1: Write the proportion equation
   1,387,603.72 : 1,915,483.50 = 843,914.04 : x
2. Step 2: Convert to fraction form
   1,387,603.72/1,915,483.50 = 843,914.04/x
3. Step 3: Cross multiply
   1,387,603.72x = 1,915,483.50 × 843,914.04
4. Step 4: Simplify right side
   1,387,603.72x = 1,616,503,419,038.34
5. Step 5: Solve for x
   x = 1,616,503,419,038.34/1,387,603.72
6. Step 6: Final answer
   x = 1,164,960.42