Finding the Fourth Proportional to 1,321,483.50, 1,823,492.52 and 777,499.65

Step by Step Solution

1. Step 1: Write the proportion equation
   1,321,483.50 : 1,823,492.52 = 777,499.65 : x
2. Step 2: Convert to fraction form
   1,321,483.50/1,823,492.52 = 777,499.65/x
3. Step 3: Cross multiply
   1,321,483.50x = 1,823,492.52 × 777,499.65
4. Step 4: Simplify right side
   1,321,483.50x = 1,417,764,796,077.62
5. Step 5: Solve for x
   x = 1,417,764,796,077.62/1,321,483.50
6. Step 6: Final answer
   x = 1,072,858.49