Finding the Fourth Proportional to 2,105,379.34, 3,158,039.75 and 507,928.93

Step by Step Solution

1. Step 1: Write the proportion equation
   2,105,379.34 : 3,158,039.75 = 507,928.93 : x
2. Step 2: Convert to fraction form
   2,105,379.34/3,158,039.75 = 507,928.93/x
3. Step 3: Cross multiply
   2,105,379.34x = 3,158,039.75 × 507,928.93
4. Step 4: Simplify right side
   2,105,379.34x = 1,604,059,740,680.22
5. Step 5: Solve for x
   x = 1,604,059,740,680.22/2,105,379.34
6. Step 6: Final answer
   x = 761,886.33