Finding the Fourth Proportional to 1,300,920.94, 1,953,299.71 and 725,668.21

Step by Step Solution

1. Step 1: Write the proportion equation
   1,300,920.94 : 1,953,299.71 = 725,668.21 : x
2. Step 2: Convert to fraction form
   1,300,920.94/1,953,299.71 = 725,668.21/x
3. Step 3: Cross multiply
   1,300,920.94x = 1,953,299.71 × 725,668.21
4. Step 4: Simplify right side
   1,300,920.94x = 1,417,447,496,196.89
5. Step 5: Solve for x
   x = 1,417,447,496,196.89/1,300,920.94
6. Step 6: Final answer
   x = 1,089,572.36