Finding the Fourth Proportional to 1,235,131.77, 1,853,227.56 and 477,505.35

Step by Step Solution

1. Step 1: Write the proportion equation
   1,235,131.77 : 1,853,227.56 = 477,505.35 : x
2. Step 2: Convert to fraction form
   1,235,131.77/1,853,227.56 = 477,505.35/x
3. Step 3: Cross multiply
   1,235,131.77x = 1,853,227.56 × 477,505.35
4. Step 4: Simplify right side
   1,235,131.77x = 884,926,074,667.45
5. Step 5: Solve for x
   x = 884,926,074,667.45/1,235,131.77
6. Step 6: Final answer
   x = 716,462.89