Finding the Fourth Proportional to 2,116,088.16, 2,921,412.15 and 1,393,037.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,116,088.16 : 2,921,412.15 = 1,393,037.76 : x
2. Step 2: Convert to fraction form
   2,116,088.16/2,921,412.15 = 1,393,037.76/x
3. Step 3: Cross multiply
   2,116,088.16x = 2,921,412.15 × 1,393,037.76
4. Step 4: Simplify right side
   2,116,088.16x = 4,069,637,437,472.78
5. Step 5: Solve for x
   x = 4,069,637,437,472.78/2,116,088.16
6. Step 6: Final answer
   x = 1,923,188.98