Finding the Fourth Proportional to 1,316,185.42, 1,816,347.89 and 772,330.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,316,185.42 : 1,816,347.89 = 772,330.27 : x
2. Step 2: Convert to fraction form
   1,316,185.42/1,816,347.89 = 772,330.27/x
3. Step 3: Cross multiply
   1,316,185.42x = 1,816,347.89 × 772,330.27
4. Step 4: Simplify right side
   1,316,185.42x = 1,402,820,453,687.59
5. Step 5: Solve for x
   x = 1,402,820,453,687.59/1,316,185.42
6. Step 6: Final answer
   x = 1,065,822.82