Finding the Fourth Proportional to 1,120,783.50, 1,546,681.23 and 718,375.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,120,783.50 : 1,546,681.23 = 718,375.50 : x
2. Step 2: Convert to fraction form
   1,120,783.50/1,546,681.23 = 718,375.50/x
3. Step 3: Cross multiply
   1,120,783.50x = 1,546,681.23 × 718,375.50
4. Step 4: Simplify right side
   1,120,783.50x = 1,111,097,901,941.87
5. Step 5: Solve for x
   x = 1,111,097,901,941.87/1,120,783.50
6. Step 6: Final answer
   x = 991,358.19