Finding the Fourth Proportional to 950,819.32, 1,312,140.72 and 521,090.04

Step by Step Solution

1. Step 1: Write the proportion equation
   950,819.32 : 1,312,140.72 = 521,090.04 : x
2. Step 2: Convert to fraction form
   950,819.32/1,312,140.72 = 521,090.04/x
3. Step 3: Cross multiply
   950,819.32x = 1,312,140.72 × 521,090.04
4. Step 4: Simplify right side
   950,819.32x = 683,743,460,270.43
5. Step 5: Solve for x
   x = 683,743,460,270.43/950,819.32
6. Step 6: Final answer
   x = 719,109.77