Finding the Fourth Proportional to 1,680,835, 2,521,274.38 and 558,904

Step by Step Solution

1. Step 1: Write the proportion equation
   1,680,835 : 2,521,274.38 = 558,904 : x
2. Step 2: Convert to fraction form
   1,680,835/2,521,274.38 = 558,904/x
3. Step 3: Cross multiply
   1,680,835x = 2,521,274.38 × 558,904
4. Step 4: Simplify right side
   1,680,835x = 1,409,150,336,079.52
5. Step 5: Solve for x
   x = 1,409,150,336,079.52/1,680,835
6. Step 6: Final answer
   x = 838,363.28