Finding the Fourth Proportional to 1,142,042.39, 1,713,279.86 and 458,982.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,142,042.39 : 1,713,279.86 = 458,982.32 : x
2. Step 2: Convert to fraction form
   1,142,042.39/1,713,279.86 = 458,982.32/x
3. Step 3: Cross multiply
   1,142,042.39x = 1,713,279.86 × 458,982.32
4. Step 4: Simplify right side
   1,142,042.39x = 786,365,154,090.76
5. Step 5: Solve for x
   x = 786,365,154,090.76/1,142,042.39
6. Step 6: Final answer
   x = 688,560.39