Finding the Fourth Proportional to 1,685,940.34, 2,326,616.04 and 921,977.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,685,940.34 : 2,326,616.04 = 921,977.50 : x
2. Step 2: Convert to fraction form
   1,685,940.34/2,326,616.04 = 921,977.50/x
3. Step 3: Cross multiply
   1,685,940.34x = 2,326,616.04 × 921,977.50
4. Step 4: Simplify right side
   1,685,940.34x = 2,145,087,640,019.10
5. Step 5: Solve for x
   x = 2,145,087,640,019.10/1,685,940.34
6. Step 6: Final answer
   x = 1,272,339.00