Finding the Fourth Proportional to 532,106.61, 734,322.69 and 290,404.71

Step by Step Solution

1. Step 1: Write the proportion equation
   532,106.61 : 734,322.69 = 290,404.71 : x
2. Step 2: Convert to fraction form
   532,106.61/734,322.69 = 290,404.71/x
3. Step 3: Cross multiply
   532,106.61x = 734,322.69 × 290,404.71
4. Step 4: Simplify right side
   532,106.61x = 213,250,767,835.87
5. Step 5: Solve for x
   x = 213,250,767,835.87/532,106.61
6. Step 6: Final answer
   x = 400,767.00