Finding the Fourth Proportional to 1,815,492.50, 2,505,280.42 and 999,541.23

Step by Step Solution

1. Step 1: Write the proportion equation
   1,815,492.50 : 2,505,280.42 = 999,541.23 : x
2. Step 2: Convert to fraction form
   1,815,492.50/2,505,280.42 = 999,541.23/x
3. Step 3: Cross multiply
   1,815,492.50x = 2,505,280.42 × 999,541.23
4. Step 4: Simplify right side
   1,815,492.50x = 2,504,131,072,501.72
5. Step 5: Solve for x
   x = 2,504,131,072,501.72/1,815,492.50
6. Step 6: Final answer
   x = 1,379,312.27