Finding the Fourth Proportional to 1,693,488.52, 2,336,928.78 and 1,005,190.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,693,488.52 : 2,336,928.78 = 1,005,190.42 : x
2. Step 2: Convert to fraction form
   1,693,488.52/2,336,928.78 = 1,005,190.42/x
3. Step 3: Cross multiply
   1,693,488.52x = 2,336,928.78 × 1,005,190.42
4. Step 4: Simplify right side
   1,693,488.52x = 2,349,058,421,878.29
5. Step 5: Solve for x
   x = 2,349,058,421,878.29/1,693,488.52
6. Step 6: Final answer
   x = 1,387,112.10